1 /////////////////////////////////////////////////////////////////
2 /// getID3() by James Heinrich <info@getid3.org> //
3 // available at http://getid3.sourceforge.net //
4 // or http://www.getid3.org //
5 // also https://github.com/JamesHeinrich/getID3 //
6 /////////////////////////////////////////////////////////////////
8 *****************************************************************
9 *****************************************************************
11 getID3() is released under multiple licenses. You may choose
12 from the following licenses, and use getID3 according to the
13 terms of the license most suitable to your project.
15 GNU GPL: https://gnu.org/licenses/gpl.html (v3)
16 https://gnu.org/licenses/old-licenses/gpl-2.0.html (v2)
17 https://gnu.org/licenses/old-licenses/gpl-1.0.html (v1)
19 GNU LGPL: https://gnu.org/licenses/lgpl.html (v3)
21 Mozilla MPL: http://www.mozilla.org/MPL/2.0/ (v2)
23 getID3 Commercial License: http://getid3.org/#gCL (payment required)
25 *****************************************************************
26 *****************************************************************
27 Copies of each of the above licenses are included in the 'licenses'
28 directory of the getID3 distribution.
31 +---------------------------------------------+
32 | If you want to donate, there is a link on |
33 | http://www.getid3.org for PayPal donations. |
34 +---------------------------------------------+
38 ===========================================================================
40 Q: How can I check that getID3() works on my server/files?
41 A: Unzip getID3() to a directory, then access /demos/demo.browse.php
46 ===========================================================================
48 Q: I have a question, or I found a bug. What do I do?
49 A: The preferred method of support requests and/or bug reports is the
50 forum at http://support.getid3.org/
54 Sourceforge Notification
55 ===========================================================================
57 It's highly recommended that you sign up for notification from
58 Sourceforge for when new versions are released. Please visit:
59 http://sourceforge.net/project/showfiles.php?group_id=55859
60 and click the little "monitor package" icon/link. If you're
61 previously signed up for the mailing list, be aware that it has
62 been discontinued, only the automated Sourceforge notification
63 will be used from now on.
67 What does getID3() do?
68 ===========================================================================
70 Reads & parses (to varying degrees):
74 * ID3v2 (v2.4, v2.3, v2.2)
80 * Ogg (Vorbis, OggFLAC, Speex, Opus)
109 * ASF: ASF, Windows Media Audio (WMA), Windows Media Video (WMV)
114 * NSV (Nullsoft Streaming Video)
115 * Quicktime (including MP4)
128 * ISO-9660 CD-ROM image (directory structure)
129 * SZIP (limited support)
130 * ZIP (directory structure)
137 * ID3v2 (v2.3 & v2.4)
138 * VorbisComment on OggVorbis
139 * VorbisComment on FLAC (not OggFLAC)
141 * Lyrics3 (delete only)
146 ===========================================================================
148 * PHP 4.2.0 up to 5.2.x for getID3() 1.7.x (and earlier)
149 * PHP 5.0.5 (or higher) for getID3() 1.8.x (and up)
150 * PHP 5.0.5 (or higher) for getID3() 2.0.x (and up)
151 * at least 4MB memory for PHP. 8MB or more is highly recommended.
152 12MB is required with all modules loaded.
157 ===========================================================================
159 See /demos/demo.basic.php for a very basic use of getID3() with no
160 fancy output, just scanning one file.
162 See structure.txt for the returned data structure.
164 *> For an example of a complete directory-browsing, <*
165 *> file-scanning implementation of getID3(), please run <*
166 *> /demos/demo.browse.php <*
168 See /demos/demo.mysql.php for a sample recursive scanning code that
169 scans every file in a given directory, and all sub-directories, stores
170 the results in a database and allows various analysis / maintenance
173 To analyze remote files over HTTP or FTP you need to copy the file
174 locally first before running getID3(). Your code would look something
177 // Copy remote file locally to scan with getID3()
178 $remotefilename = 'http://www.example.com/filename.mp3';
179 if ($fp_remote = fopen($remotefilename, 'rb')) {
180 $localtempfilename = tempnam('/tmp', 'getID3');
181 if ($fp_local = fopen($localtempfilename, 'wb')) {
182 while ($buffer = fread($fp_remote, 8192)) {
183 fwrite($fp_local, $buffer);
187 // Initialize getID3 engine
188 $getID3 = new getID3;
190 $ThisFileInfo = $getID3->analyze($localtempfilename);
192 // Delete temporary file
193 unlink($localtempfilename);
198 Note: since v1.9.9-20150212 it is possible a second and third parameter
199 to $getID3->analyze(), for original filesize and original filename
200 respectively. This permits you to download only a portion of a large remote
201 file but get accurate playtime estimates, assuming the format only requires
202 the beginning of the file for correct format analysis.
204 See /demos/demo.write.php for how to write tags.
208 What does the returned data structure look like?
209 ===========================================================================
213 It is recommended that you look at the output of
214 /demos/demo.browse.php scanning the file(s) you're interested in to
215 confirm what data is actually returned for any particular filetype in
216 general, and your files in particular, as the actual data returned
217 may vary considerably depending on what information is available in
223 ===========================================================================
226 If the format parser encounters a critical problem, it will return
227 something in $fileinfo['error'], describing the encountered error. If
228 a less critical error or notice is generated it will appear in
229 $fileinfo['warning']. Both keys may contain more than one warning or
230 error. If something is returned in ['error'] then the file was not
231 correctly parsed and returned data may or may not be correct and/or
232 complete. If something is returned in ['warning'] (and not ['error'])
233 then the data that is returned is OK - usually getID3() is reporting
234 errors in the file that have been worked around due to known bugs in
235 other programs. Some warnings may indicate that the data that is
236 returned is OK but that some data could not be extracted due to
240 See above except errors are thrown (so you will only get one error).
245 ===========================================================================
247 getID3() has been tested on many systems, on many types of files,
248 under many operating systems, and is generally believe to be stable
249 and safe. That being said, there is still the chance there is an
250 undiscovered and/or unfixed bug that may potentially corrupt your
251 file, especially within the writing functions. By using getID3() you
252 agree that it's not my fault if any of your files are corrupted.
253 In fact, I'm not liable for anything :)
258 ===========================================================================
260 GNU General Public License - see license.txt
262 This program is free software; you can redistribute it and/or
263 modify it under the terms of the GNU General Public License
264 as published by the Free Software Foundation; either version 2
265 of the License, or (at your option) any later version.
267 This program is distributed in the hope that it will be useful,
268 but WITHOUT ANY WARRANTY; without even the implied warranty of
269 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
270 GNU General Public License for more details.
272 You should have received a copy of the GNU General Public License
273 along with this program; if not, write to:
274 Free Software Foundation, Inc.
275 59 Temple Place - Suite 330
276 Boston, MA 02111-1307, USA.
279 Q: Can I use getID3() in my program? Do I need a commercial license?
280 A: You're generally free to use getID3 however you see fit. The only
281 case in which you would require a commercial license is if you're
282 selling your closed-source program that integrates getID3. If you
283 sell your program including a copy of getID3, that's fine as long
284 as you include a copy of the sourcecode when you sell it. Or you
285 can distribute your code without getID3 and say "download it from
286 getid3.sourceforge.net"
290 Why is it called "getID3()" if it does so much more than just that?
291 ===========================================================================
293 v0.1 did in fact just do that. I don't have a copy of code that old, but I
294 could essentially write it today with a one-line function:
295 function getID3($filename) { return unpack('a3TAG/a30title/a30artist/a30album/a4year/a28comment/c1track/c1genreid', substr(file_get_contents($filename), -128)); }
299 ===========================================================================
300 http://www.getid3.org/phpBB3/viewforum.php?f=7
302 * Better support for MP4 container format
303 * Scan for appended ID3v2 tag at end of file per ID3v2.4 specs (Section 5.0)
304 * Support for JPEG-2000 (http://www.morgan-multimedia.com/jpeg2000_overview.htm)
305 * Support for MOD (mod/stm/s3m/it/xm/mtm/ult/669)
306 * Support for ACE (thanks Vince)
307 * Support for Ogg other than Vorbis, Speex and OggFlac (ie. Ogg+Xvid)
308 * Ability to create Xing/LAME VBR header for VBR MP3s that are missing VBR header
309 * Ability to "clean" ID3v2 padding (replace invalid padding with valid padding)
310 * Warn if MP3s change version mid-stream (in full-scan mode)
311 * check for corrupt/broken mid-file MP3 streams in histogram scan
312 * Support for lossless-compression formats
313 (http://www.firstpr.com.au/audiocomp/lossless/#Links)
314 (http://compression.ca/act-sound.html)
315 (http://web.inter.nl.net/users/hvdh/lossless/lossless.htm)
316 * Support for RIFF-INFO chunks
317 * http://lotto.st-andrews.ac.uk/~njh/tag_interchange.html
318 (thanks Nick Humfrey <njhØsurgeradio*co*uk>)
319 * http://abcavi.narod.ru/sof/abcavi/infotags.htm
321 * Better support for Bink video
322 * http://www.hr/josip/DSP/AudioFile2.html
323 * http://www.pcisys.net/~melanson/codecs/
333 * Support for EXE (comments, author, etc) (thanks p*quaedackersØplanet*nl)
334 * Support for DVD-IFO (region, subtitles, aspect ratio, etc)
335 (thanks p*quaedackersØplanet*nl)
336 * More complete support for SWF - parsing encapsulated MP3 and/or JPEG content
337 (thanks n8n8Øyahoo*com)
339 * Optional scan-through-frames for AVI verification
340 (thanks rockcohenØmassive-interactive*nl)
341 * Support for TTF (thanks infoØbutterflyx*com)
342 * Support for DSS (http://www.getid3.org/phpBB3/viewtopic.php?t=171)
343 * Support for SMAF (http://smaf-yamaha.com/what/demo.html)
344 http://www.getid3.org/phpBB3/viewtopic.php?t=182
345 * Support for AMR (http://www.getid3.org/phpBB3/viewtopic.php?t=195)
346 * Support for 3gpp (http://www.getid3.org/phpBB3/viewtopic.php?t=195)
347 * Support for ID4 (http://www.wackysoft.cjb.net grizlyY2KØhotmail*com)
348 * Parse XML data returned in Ogg comments
349 * Parse XML data from Quicktime SMIL metafiles (klausrathØmac*com)
350 * ID3v2 genre string creator function
351 * More complete parsing of JPG
352 * Support for all old-style ASF packets
353 * ASF/WMA/WMV tag writing
354 * Parse declared T??? ID3v2 text information frames, where appropriate
355 (thanks Christian Fritz for the idea)
357 http://www.guerillasoft.com/EncSpot2/index.html
358 http://ff123.net/identify.html
359 http://www.hydrogenaudio.org/?act=ST&f=16&t=9414
360 http://www.hydrogenaudio.org/?showtopic=11785
361 * Support for other OS/2 bitmap structures: Bitmap Array('BA'),
362 Color Icon('CI'), Color Pointer('CP'), Icon('IC'), Pointer ('PT')
363 http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
364 * Support for WavPack RAW mode
365 * ASF/WMA/WMV data packet parsing
366 * ID3v2FrameFlagsLookupTagAlter()
367 * ID3v2FrameFlagsLookupFileAlter()
368 * obey ID3v2 tag alter/preserve/discard rules
369 * http://www.geocities.com/SiliconValley/Sector/9654/Softdoc/Illyrium/Aolyr.htm
370 * proper checking for LINK/LNK frame validity in ID3v2 writing
371 * proper checking for ASPI-TLEN frame validity in ID3v2 writing
372 * proper checking for COMR frame validity in ID3v2 writing
373 * http://www.geocities.co.jp/SiliconValley-Oakland/3664/index.html
374 * decode GEOB ID3v2 structure as encoded by RealJukebox,
375 decode NCON ID3v2 structure as encoded by MusicMatch
376 (probably won't happen - the formats are proprietary)
380 Known Bugs/Issues in getID3() that may be fixed eventually
381 ===========================================================================
382 http://www.getid3.org/phpBB3/viewtopic.php?t=25
384 * Cannot determine bitrate for MPEG video with VBR video data
386 * Interlace/progressive cannot be determined for MPEG video
388 * MIDI playtime is sometimes inaccurate
389 * AAC-RAW mode files cannot be identified
390 * WavPack-RAW mode files cannot be identified
391 * mp4 files report lots of "Unknown QuickTime atom type"
393 * Encrypted ASF/WMA/WMV files warn about "unhandled GUID
394 ASF_Content_Encryption_Object"
395 * Bitrate split between audio and video cannot be calculated for
396 NSV, only the total bitrate. (need documentation)
397 * All Ogg formats (Vorbis, OggFLAC, Speex) are affected by the
398 problem of large VorbisComments spanning multiple Ogg pages, but
399 but only OggVorbis files can be processed with vorbiscomment.
400 * The version of "head" supplied with Mac OS 10.2.8 (maybe other
401 versions too) does only understands a single option (-n) and
402 therefore fails. getID3 ignores this and returns wrong md5_data.
406 Known Bugs/Issues in getID3() that cannot be fixed
407 --------------------------------------------------
408 http://www.getid3.org/phpBB3/viewtopic.php?t=25
410 * 32-bit PHP installations only:
411 Files larger than 2GB cannot always be parsed fully by getID3()
412 due to limitations in the 32-bit PHP filesystem functions.
413 NOTE: Since v1.7.8b3 there is partial support for larger-than-
414 2GB files, most of which will parse OK, as long as no critical
415 data is located beyond the 2GB offset.
417 * all file formats on 64-bit PHP
418 * ZIP (format doesn't support files >2GB)
419 * FLAC (current encoders don't support files >2GB)
421 * ID3v1 tags (always located at end-of-file)
422 * Lyrics3 tags (always located at end-of-file)
423 * APE tags (always located at end-of-file)
425 * Quicktime (will work if needed metadata is before 2GB offset,
426 that is if the file has been hinted/optimized for streaming)
427 * RIFF.WAV (should work fine, but gives warnings about not being
428 able to parse all chunks)
429 * RIFF.AVI (playtime will probably be wrong, is only based on
430 "movi" chunk that fits in the first 2GB, should issue error
431 to show that playtime is incorrect. Other data should be mostly
432 correct, assuming that data is constant throughout the file)
433 * PHP <= v5 on Windows cannot read UTF-8 filenames
436 Known Bugs/Issues in other programs
437 -----------------------------------
438 http://www.getid3.org/phpBB3/viewtopic.php?t=25
440 * MusicBrainz Picard (at least up to v1.3.2) writes multiple
441 ID3v2.3 genres in non-standard forward-slash separated text
442 rather than parenthesis-numeric+refinement style per the ID3v2.3
443 specs. Tags written in ID3v2.4 mode are written correctly.
444 (detected and worked around by getID3())
445 * PZ TagEditor v4.53.408 has been known to insert ID3v2.3 frames
446 into an existing ID3v2.2 tag which, of course, breaks things
447 * Windows Media Player (up to v11) and iTunes (up to v10+) do
448 not correctly handle ID3v2.3 tags with UTF-16BE+BOM
449 encoding (they assume the data is UTF-16LE+BOM and either
450 crash (WMP) or output Asian character set (iTunes)
451 * Winamp (up to v2.80 at least) does not support ID3v2.4 tags,
453 see: http://forums.winamp.com/showthread.php?postid=387524
454 * Some versions of Helium2 (www.helium2.com) do not write
455 ID3v2.4-compliant Frame Sizes, even though the tag is marked
456 as ID3v2.4) (detected by getID3())
457 * MP3ext V3.3.17 places a non-compliant padding string at the end
458 of the ID3v2 header. This is supposedly fixed in v3.4b21 but
459 only if you manually add a registry key. This fix is not yet
460 confirmed. (detected by getID3())
461 * CDex v1.40 (fixed by v1.50b7) writes non-compliant Ogg comment
462 strings, supposed to be in the format "NAME=value" but actually
463 written just "value" (detected by getID3())
464 * Oggenc 0.9-rc3 flags the encoded file as ABR whether it's
466 * iTunes (versions "v7.0.0.70" is known-guilty, probably
467 other versions are too) writes ID3v2.3 comment tags using an
468 ID3v2.2 frame name (3-bytes) null-padded to 4 bytes which is
469 not valid for ID3v2.3+
470 (detected by getID3() since 1.9.12-201603221746)
471 * iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably
472 other versions are too) writes ID3v2.3 comment tags using a
473 frame name 'COM ' which is not valid for ID3v2.3+ (it's an
474 ID3v2.2-style frame name) (detected by getID3())
475 * MP2enc does not encode mono CBR MP2 files properly (half speed
476 sound and double playtime)
477 * MP2enc does not encode mono VBR MP2 files properly (actually
479 * tooLAME does not encode mono VBR MP2 files properly (actually
481 * AACenc encodes files in VBR mode (actually ABR) even if CBR is
483 * AAC/ADIF - bitrate_mode = cbr for vbr files
484 * LAME 3.90-3.92 prepends one frame of null data (space for the
485 LAME/VBR header, but it never gets written) when encoding in CBR
487 * Ahead Nero encodes TwinVQF with a DSIZ value (which is supposed
488 to be the filesize in bytes) of "0" for TwinVQF v1.0 and "1" for
489 TwinVQF v2.0 (detected by getID3())
490 * Ahead Nero encodes TwinVQF files 1 second shorter than they
492 * AAC-ADTS files are always actually encoded VBR, even if CBR mode
493 is specified (the CBR-mode switches on the encoder enable ABR
494 mode, not CBR as such, but it's not possible to tell the
495 difference between such ABR files and true VBR)
496 * STREAMINFO.audio_signature in OggFLAC is always null. "The reason
497 it's like that is because there is no seeking support in
498 libOggFLAC yet, so it has no way to go back and write the
499 computed sum after encoding. Seeking support in Ogg FLAC is the
500 #1 item for the next release." - Josh Coalson (FLAC developer)
501 NOTE: getID3() will calculate md5_data in a method similar to
502 other file formats, but that value cannot be compared to the
503 md5_data value from FLAC data in a FLAC file format.
504 * STREAMINFO.audio_signature is not calculated in FLAC v0.3.0 &
505 v0.4.0 - getID3() will calculate md5_data in a method similar to
506 other file formats, but that value cannot be compared to the
507 md5_data value from FLAC v0.5.0+
508 * RioPort (various versions including 2.0 and 3.11) tags ID3v2 with
509 a WCOM frame that has no data portion
510 * Earlier versions of Coolplayer adds illegal ID3 tags to Ogg Vorbis
511 files, thus making them corrupt.
512 * Meracl ID3 Tag Writer v1.3.4 (and older) incorrectly truncates the
513 last byte of data from an MP3 file when appending a new ID3v1 tag.
514 (detected by getID3())
515 * Lossless-Audio files encoded with and without the -noseek switch
516 do actually differ internally and therefore cannot match md5_data
517 * iTunes has been known to append a new ID3v1 tag on the end of an
518 existing ID3v1 tag when ID3v2 tag is also present
519 (detected by getID3())
520 * MediaMonkey may write a blank RGAD ID3v2 frame but put actual
521 replay gain adjustments in a series of user-defined TXXX frames
522 (detected and handled by getID3() since v1.9.2)
528 ===========================================================================
530 [www.id3.org material now mirrored at http://id3lib.sourceforge.net/id3/]
531 * http://www.id3.org/id3v2.4.0-structure.txt
532 * http://www.id3.org/id3v2.4.0-frames.txt
533 * http://www.id3.org/id3v2.4.0-changes.txt
534 * http://www.id3.org/id3v2.3.0.txt
535 * http://www.id3.org/id3v2-00.txt
536 * http://www.id3.org/mp3frame.html
537 * http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html <mathewhendry@hotmail.com>
538 * http://www.dv.co.yu/mpgscript/mpeghdr.htm
539 * http://www.mp3-tech.org/programmer/frame_header.html
540 * http://users.belgacom.net/gc247244/extra/tag.html
541 * http://gabriel.mp3-tech.org/mp3infotag.html
542 * http://www.id3.org/iso4217.html
543 * http://www.unicode.org/Public/MAPPINGS/ISO8859/8859-1.TXT
544 * http://www.xiph.org/ogg/vorbis/doc/framing.html
545 * http://www.xiph.org/ogg/vorbis/doc/v-comment.html
546 * http://leknor.com/code/php/class.ogg.php.txt
547 * http://www.id3.org/iso639-2.html
548 * http://www.id3.org/lyrics3.html
549 * http://www.id3.org/lyrics3200.html
550 * http://www.psc.edu/general/software/packages/ieee/ieee.html
551 * http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html
552 * http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
553 * http://www.jmcgowan.com/avi.html
554 * http://www.wotsit.org/
555 * http://www.herdsoft.com/ti/davincie/davp3xo2.htm
556 * http://www.mathdogs.com/vorbis-illuminated/bitstream-appendix.html
557 * "Standard MIDI File Format" by Dustin Caldwell (from www.wotsit.org)
558 * http://midistudio.com/Help/GMSpecs_Patches.htm
559 * http://www.xiph.org/archives/vorbis/200109/0459.html
560 * http://www.replaygain.org/
561 * http://www.lossless-audio.com/
562 * http://download.microsoft.com/download/winmediatech40/Doc/1.0/WIN98MeXP/EN-US/ASF_Specification_v.1.0.exe
563 * http://mediaxw.sourceforge.net/files/doc/Active%20Streaming%20Format%20(ASF)%201.0%20Specification.pdf
564 * http://www.uni-jena.de/~pfk/mpp/sv8/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/sv8/)
565 * http://jfaul.de/atl/
566 * http://www.uni-jena.de/~pfk/mpp/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/)
567 * http://www.libpng.org/pub/png/spec/png-1.2-pdg.html
568 * http://www.real.com/devzone/library/creating/rmsdk/doc/rmff.htm
569 * http://www.fastgraph.com/help/bmp_os2_header_format.html
570 * http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
571 * http://flac.sourceforge.net/format.html
572 * http://www.research.att.com/projects/mpegaudio/mpeg2.html
573 * http://www.audiocoding.com/wiki/index.php?page=AAC
574 * http://libmpeg.org/mpeg4/doc/w2203tfs.pdf
575 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
576 * http://developer.apple.com/techpubs/quicktime/qtdevdocs/RM/frameset.htm
577 * http://www.nullsoft.com/nsv/
578 * http://www.wotsit.org/download.asp?f=iso9660
579 * http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html
580 * http://www.cdroller.com/htm/readdata.html
581 * http://www.speex.org/manual/node10.html
582 * http://www.harmony-central.com/Computer/Programming/aiff-file-format.doc
583 * http://www.faqs.org/rfcs/rfc2361.html
584 * http://ghido.shelter.ro/
585 * http://www.ebu.ch/tech_t3285.pdf
586 * http://www.sr.se/utveckling/tu/bwf
587 * http://ftp.aessc.org/pub/aes46-2002.pdf
588 * http://cartchunk.org:8080/
589 * http://www.broadcastpapers.com/radio/cartchunk01.htm
590 * http://www.hr/josip/DSP/AudioFile2.html
591 * http://home.attbi.com/~chris.bagwell/AudioFormats-11.html
592 * http://www.pure-mac.com/extkey.html
593 * http://cesnet.dl.sourceforge.net/sourceforge/bonkenc/bonk-binary-format-0.9.txt
594 * http://www.headbands.com/gspot/
595 * http://www.openswf.org/spec/SWFfileformat.html
596 * http://j-faul.virtualave.net/
597 * http://www.btinternet.com/~AnthonyJ/Atari/programming/avr_format.html
598 * http://cui.unige.ch/OSG/info/AudioFormats/ap11.html
599 * http://sswf.sourceforge.net/SWFalexref.html
600 * http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
601 * http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm
602 * http://developer.apple.com/quicktime/icefloe/dispatch012.html
603 * http://www.csdn.net/Dev/Format/graphics/PCD.htm
604 * http://tta.iszf.irk.ru/
605 * http://www.atsc.org/standards/a_52a.pdf
606 * http://www.alanwood.net/unicode/
607 * http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
608 * http://www.its.msstate.edu/net/real/reports/config/tags.stats
609 * http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
610 * http://brennan.young.net/Comp/LiveStage/things.html
611 * http://www.multiweb.cz/twoinches/MP3inside.htm
612 * http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended
613 * http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/
614 * http://www.unicode.org/unicode/faq/utf_bom.html
615 * http://tta.corecodec.org/?menu=format
616 * http://www.scvi.net/nsvformat.htm
617 * http://pda.etsi.org/pda/queryform.asp
618 * http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm
619 * http://trac.musepack.net/trac/wiki/SV8Specification
620 * http://wyday.com/cuesharp/specification.php
621 * http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
622 * http://www.codeproject.com/Articles/8295/MPEG-Audio-Frame-Header
623 * http://dsd-guide.com/sites/default/files/white-papers/DSFFileFormatSpec_E.pdf