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)
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 = $getID3->analyze($filename);
192 // Delete temporary file
193 unlink($localtempfilename);
199 See /demos/demo.write.php for how to write tags.
203 What does the returned data structure look like?
204 ===========================================================================
208 It is recommended that you look at the output of
209 /demos/demo.browse.php scanning the file(s) you're interested in to
210 confirm what data is actually returned for any particular filetype in
211 general, and your files in particular, as the actual data returned
212 may vary considerably depending on what information is available in
218 ===========================================================================
221 If the format parser encounters a critical problem, it will return
222 something in $fileinfo['error'], describing the encountered error. If
223 a less critical error or notice is generated it will appear in
224 $fileinfo['warning']. Both keys may contain more than one warning or
225 error. If something is returned in ['error'] then the file was not
226 correctly parsed and returned data may or may not be correct and/or
227 complete. If something is returned in ['warning'] (and not ['error'])
228 then the data that is returned is OK - usually getID3() is reporting
229 errors in the file that have been worked around due to known bugs in
230 other programs. Some warnings may indicate that the data that is
231 returned is OK but that some data could not be extracted due to
235 See above except errors are thrown (so you will only get one error).
240 ===========================================================================
242 getID3() has been tested on many systems, on many types of files,
243 under many operating systems, and is generally believe to be stable
244 and safe. That being said, there is still the chance there is an
245 undiscovered and/or unfixed bug that may potentially corrupt your
246 file, especially within the writing functions. By using getID3() you
247 agree that it's not my fault if any of your files are corrupted.
248 In fact, I'm not liable for anything :)
253 ===========================================================================
255 GNU General Public License - see license.txt
257 This program is free software; you can redistribute it and/or
258 modify it under the terms of the GNU General Public License
259 as published by the Free Software Foundation; either version 2
260 of the License, or (at your option) any later version.
262 This program is distributed in the hope that it will be useful,
263 but WITHOUT ANY WARRANTY; without even the implied warranty of
264 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
265 GNU General Public License for more details.
267 You should have received a copy of the GNU General Public License
268 along with this program; if not, write to:
269 Free Software Foundation, Inc.
270 59 Temple Place - Suite 330
271 Boston, MA 02111-1307, USA.
274 Q: Can I use getID3() in my program? Do I need a commercial license?
275 A: You're generally free to use getID3 however you see fit. The only
276 case in which you would require a commercial license is if you're
277 selling your closed-source program that integrates getID3. If you
278 sell your program including a copy of getID3, that's fine as long
279 as you include a copy of the sourcecode when you sell it. Or you
280 can distribute your code without getID3 and say "download it from
281 getid3.sourceforge.net"
285 Why is it called "getID3()" if it does so much more than just that?
286 ===========================================================================
288 v0.1 did in fact just do that. I don't have a copy of code that old, but I
289 could essentially write it today with a one-line function:
290 function getID3($filename) { return unpack('a3TAG/a30title/a30artist/a30album/a4year/a28comment/c1track/c1genreid', substr(file_get_contents($filename), -128)); }
294 ===========================================================================
295 http://www.getid3.org/phpBB3/viewforum.php?f=7
297 * Better support for MP4 container format
298 * Scan for appended ID3v2 tag at end of file per ID3v2.4 specs (Section 5.0)
299 * Support for JPEG-2000 (http://www.morgan-multimedia.com/jpeg2000_overview.htm)
300 * Support for MOD (mod/stm/s3m/it/xm/mtm/ult/669)
301 * Support for ACE (thanks Vince)
302 * Support for Ogg other than Vorbis, Speex and OggFlac (ie. Ogg+Xvid)
303 * Ability to create Xing/LAME VBR header for VBR MP3s that are missing VBR header
304 * Ability to "clean" ID3v2 padding (replace invalid padding with valid padding)
305 * Warn if MP3s change version mid-stream (in full-scan mode)
306 * check for corrupt/broken mid-file MP3 streams in histogram scan
307 * Support for lossless-compression formats
308 (http://www.firstpr.com.au/audiocomp/lossless/#Links)
309 (http://compression.ca/act-sound.html)
310 (http://web.inter.nl.net/users/hvdh/lossless/lossless.htm)
311 * Support for RIFF-INFO chunks
312 * http://lotto.st-andrews.ac.uk/~njh/tag_interchange.html
313 (thanks Nick Humfrey <njhØsurgeradio*co*uk>)
314 * http://abcavi.narod.ru/sof/abcavi/infotags.htm
316 * Better support for Bink video
317 * http://www.hr/josip/DSP/AudioFile2.html
318 * http://www.pcisys.net/~melanson/codecs/
328 * Support for EXE (comments, author, etc) (thanks p*quaedackersØplanet*nl)
329 * Support for DVD-IFO (region, subtitles, aspect ratio, etc)
330 (thanks p*quaedackersØplanet*nl)
331 * More complete support for SWF - parsing encapsulated MP3 and/or JPEG content
332 (thanks n8n8Øyahoo*com)
334 * Optional scan-through-frames for AVI verification
335 (thanks rockcohenØmassive-interactive*nl)
336 * Support for TTF (thanks infoØbutterflyx*com)
337 * Support for DSS (http://www.getid3.org/phpBB3/viewtopic.php?t=171)
338 * Support for SMAF (http://smaf-yamaha.com/what/demo.html)
339 http://www.getid3.org/phpBB3/viewtopic.php?t=182
340 * Support for AMR (http://www.getid3.org/phpBB3/viewtopic.php?t=195)
341 * Support for 3gpp (http://www.getid3.org/phpBB3/viewtopic.php?t=195)
342 * Support for ID4 (http://www.wackysoft.cjb.net grizlyY2KØhotmail*com)
343 * Parse XML data returned in Ogg comments
344 * Parse XML data from Quicktime SMIL metafiles (klausrathØmac*com)
345 * ID3v2 genre string creator function
346 * More complete parsing of JPG
347 * Support for all old-style ASF packets
348 * ASF/WMA/WMV tag writing
349 * Parse declared T??? ID3v2 text information frames, where appropriate
350 (thanks Christian Fritz for the idea)
352 http://www.guerillasoft.com/EncSpot2/index.html
353 http://ff123.net/identify.html
354 http://www.hydrogenaudio.org/?act=ST&f=16&t=9414
355 http://www.hydrogenaudio.org/?showtopic=11785
356 * Support for other OS/2 bitmap structures: Bitmap Array('BA'),
357 Color Icon('CI'), Color Pointer('CP'), Icon('IC'), Pointer ('PT')
358 http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
359 * Support for WavPack RAW mode
360 * ASF/WMA/WMV data packet parsing
361 * ID3v2FrameFlagsLookupTagAlter()
362 * ID3v2FrameFlagsLookupFileAlter()
363 * obey ID3v2 tag alter/preserve/discard rules
364 * http://www.geocities.com/SiliconValley/Sector/9654/Softdoc/Illyrium/Aolyr.htm
365 * proper checking for LINK/LNK frame validity in ID3v2 writing
366 * proper checking for ASPI-TLEN frame validity in ID3v2 writing
367 * proper checking for COMR frame validity in ID3v2 writing
368 * http://www.geocities.co.jp/SiliconValley-Oakland/3664/index.html
369 * decode GEOB ID3v2 structure as encoded by RealJukebox,
370 decode NCON ID3v2 structure as encoded by MusicMatch
371 (probably won't happen - the formats are proprietary)
375 Known Bugs/Issues in getID3() that may be fixed eventually
376 ===========================================================================
377 http://www.getid3.org/phpBB3/viewtopic.php?t=25
379 * Cannot determine bitrate for MPEG video with VBR video data
381 * Interlace/progressive cannot be determined for MPEG video
383 * MIDI playtime is sometimes inaccurate
384 * AAC-RAW mode files cannot be identified
385 * WavPack-RAW mode files cannot be identified
386 * mp4 files report lots of "Unknown QuickTime atom type"
388 * Encrypted ASF/WMA/WMV files warn about "unhandled GUID
389 ASF_Content_Encryption_Object"
390 * Bitrate split between audio and video cannot be calculated for
391 NSV, only the total bitrate. (need documentation)
392 * All Ogg formats (Vorbis, OggFLAC, Speex) are affected by the
393 problem of large VorbisComments spanning multiple Ogg pages, but
394 but only OggVorbis files can be processed with vorbiscomment.
395 * The version of "head" supplied with Mac OS 10.2.8 (maybe other
396 versions too) does only understands a single option (-n) and
397 therefore fails. getID3 ignores this and returns wrong md5_data.
401 Known Bugs/Issues in getID3() that cannot be fixed
402 --------------------------------------------------
403 http://www.getid3.org/phpBB3/viewtopic.php?t=25
405 * 32-bit PHP installations only:
406 Files larger than 2GB cannot always be parsed fully by getID3()
407 due to limitations in the 32-bit PHP filesystem functions.
408 NOTE: Since v1.7.8b3 there is partial support for larger-than-
409 2GB files, most of which will parse OK, as long as no critical
410 data is located beyond the 2GB offset.
412 * all file formats on 64-bit PHP
413 * ZIP (format doesn't support files >2GB)
414 * FLAC (current encoders don't support files >2GB)
416 * ID3v1 tags (always located at end-of-file)
417 * Lyrics3 tags (always located at end-of-file)
418 * APE tags (always located at end-of-file)
420 * Quicktime (will work if needed metadata is before 2GB offset,
421 that is if the file has been hinted/optimized for streaming)
422 * RIFF.WAV (should work fine, but gives warnings about not being
423 able to parse all chunks)
424 * RIFF.AVI (playtime will probably be wrong, is only based on
425 "movi" chunk that fits in the first 2GB, should issue error
426 to show that playtime is incorrect. Other data should be mostly
427 correct, assuming that data is constant throughout the file)
428 * PHP <= v5 on Windows cannot read UTF-8 filenames
431 Known Bugs/Issues in other programs
432 -----------------------------------
433 http://www.getid3.org/phpBB3/viewtopic.php?t=25
435 * Windows Media Player (up to v11) and iTunes (up to v10+) do
436 not correctly handle ID3v2.3 tags with UTF-16BE+BOM
437 encoding (they assume the data is UTF-16LE+BOM and either
438 crash (WMP) or output Asian character set (iTunes)
439 * Winamp (up to v2.80 at least) does not support ID3v2.4 tags,
441 see: http://forums.winamp.com/showthread.php?postid=387524
442 * Some versions of Helium2 (www.helium2.com) do not write
443 ID3v2.4-compliant Frame Sizes, even though the tag is marked
444 as ID3v2.4) (detected by getID3())
445 * MP3ext V3.3.17 places a non-compliant padding string at the end
446 of the ID3v2 header. This is supposedly fixed in v3.4b21 but
447 only if you manually add a registry key. This fix is not yet
448 confirmed. (detected by getID3())
449 * CDex v1.40 (fixed by v1.50b7) writes non-compliant Ogg comment
450 strings, supposed to be in the format "NAME=value" but actually
451 written just "value" (detected by getID3())
452 * Oggenc 0.9-rc3 flags the encoded file as ABR whether it's
454 * iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably
455 other versions are too) writes ID3v2.3 comment tags using a
456 frame name 'COM ' which is not valid for ID3v2.3+ (it's an
457 ID3v2.2-style frame name) (detected by getID3())
458 * MP2enc does not encode mono CBR MP2 files properly (half speed
459 sound and double playtime)
460 * MP2enc does not encode mono VBR MP2 files properly (actually
462 * tooLAME does not encode mono VBR MP2 files properly (actually
464 * AACenc encodes files in VBR mode (actually ABR) even if CBR is
466 * AAC/ADIF - bitrate_mode = cbr for vbr files
467 * LAME 3.90-3.92 prepends one frame of null data (space for the
468 LAME/VBR header, but it never gets written) when encoding in CBR
470 * Ahead Nero encodes TwinVQF with a DSIZ value (which is supposed
471 to be the filesize in bytes) of "0" for TwinVQF v1.0 and "1" for
472 TwinVQF v2.0 (detected by getID3())
473 * Ahead Nero encodes TwinVQF files 1 second shorter than they
475 * AAC-ADTS files are always actually encoded VBR, even if CBR mode
476 is specified (the CBR-mode switches on the encoder enable ABR
477 mode, not CBR as such, but it's not possible to tell the
478 difference between such ABR files and true VBR)
479 * STREAMINFO.audio_signature in OggFLAC is always null. "The reason
480 it's like that is because there is no seeking support in
481 libOggFLAC yet, so it has no way to go back and write the
482 computed sum after encoding. Seeking support in Ogg FLAC is the
483 #1 item for the next release." - Josh Coalson (FLAC developer)
484 NOTE: getID3() will calculate md5_data in a method similar to
485 other file formats, but that value cannot be compared to the
486 md5_data value from FLAC data in a FLAC file format.
487 * STREAMINFO.audio_signature is not calculated in FLAC v0.3.0 &
488 v0.4.0 - getID3() will calculate md5_data in a method similar to
489 other file formats, but that value cannot be compared to the
490 md5_data value from FLAC v0.5.0+
491 * RioPort (various versions including 2.0 and 3.11) tags ID3v2 with
492 a WCOM frame that has no data portion
493 * Earlier versions of Coolplayer adds illegal ID3 tags to Ogg Vorbis
494 files, thus making them corrupt.
495 * Meracl ID3 Tag Writer v1.3.4 (and older) incorrectly truncates the
496 last byte of data from an MP3 file when appending a new ID3v1 tag.
497 (detected by getID3())
498 * Lossless-Audio files encoded with and without the -noseek switch
499 do actually differ internally and therefore cannot match md5_data
500 * iTunes has been known to append a new ID3v1 tag on the end of an
501 existing ID3v1 tag when ID3v2 tag is also present
502 (detected by getID3())
503 * MediaMonkey may write a blank RGAD ID3v2 frame but put actual
504 replay gain adjustments in a series of user-defined TXXX frames
505 (detected and handled by getID3() since v1.9.2)
511 ===========================================================================
513 [www.id3.org material now mirrored at http://id3lib.sourceforge.net/id3/]
514 * http://www.id3.org/id3v2.4.0-structure.txt
515 * http://www.id3.org/id3v2.4.0-frames.txt
516 * http://www.id3.org/id3v2.4.0-changes.txt
517 * http://www.id3.org/id3v2.3.0.txt
518 * http://www.id3.org/id3v2-00.txt
519 * http://www.id3.org/mp3frame.html
520 * http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html <mathewhendry@hotmail.com>
521 * http://www.dv.co.yu/mpgscript/mpeghdr.htm
522 * http://www.mp3-tech.org/programmer/frame_header.html
523 * http://users.belgacom.net/gc247244/extra/tag.html
524 * http://gabriel.mp3-tech.org/mp3infotag.html
525 * http://www.id3.org/iso4217.html
526 * http://www.unicode.org/Public/MAPPINGS/ISO8859/8859-1.TXT
527 * http://www.xiph.org/ogg/vorbis/doc/framing.html
528 * http://www.xiph.org/ogg/vorbis/doc/v-comment.html
529 * http://leknor.com/code/php/class.ogg.php.txt
530 * http://www.id3.org/iso639-2.html
531 * http://www.id3.org/lyrics3.html
532 * http://www.id3.org/lyrics3200.html
533 * http://www.psc.edu/general/software/packages/ieee/ieee.html
534 * http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html
535 * http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
536 * http://www.jmcgowan.com/avi.html
537 * http://www.wotsit.org/
538 * http://www.herdsoft.com/ti/davincie/davp3xo2.htm
539 * http://www.mathdogs.com/vorbis-illuminated/bitstream-appendix.html
540 * "Standard MIDI File Format" by Dustin Caldwell (from www.wotsit.org)
541 * http://midistudio.com/Help/GMSpecs_Patches.htm
542 * http://www.xiph.org/archives/vorbis/200109/0459.html
543 * http://www.replaygain.org/
544 * http://www.lossless-audio.com/
545 * http://download.microsoft.com/download/winmediatech40/Doc/1.0/WIN98MeXP/EN-US/ASF_Specification_v.1.0.exe
546 * http://mediaxw.sourceforge.net/files/doc/Active%20Streaming%20Format%20(ASF)%201.0%20Specification.pdf
547 * http://www.uni-jena.de/~pfk/mpp/sv8/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/sv8/)
548 * http://jfaul.de/atl/
549 * http://www.uni-jena.de/~pfk/mpp/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/)
550 * http://www.libpng.org/pub/png/spec/png-1.2-pdg.html
551 * http://www.real.com/devzone/library/creating/rmsdk/doc/rmff.htm
552 * http://www.fastgraph.com/help/bmp_os2_header_format.html
553 * http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
554 * http://flac.sourceforge.net/format.html
555 * http://www.research.att.com/projects/mpegaudio/mpeg2.html
556 * http://www.audiocoding.com/wiki/index.php?page=AAC
557 * http://libmpeg.org/mpeg4/doc/w2203tfs.pdf
558 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
559 * http://developer.apple.com/techpubs/quicktime/qtdevdocs/RM/frameset.htm
560 * http://www.nullsoft.com/nsv/
561 * http://www.wotsit.org/download.asp?f=iso9660
562 * http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html
563 * http://www.cdroller.com/htm/readdata.html
564 * http://www.speex.org/manual/node10.html
565 * http://www.harmony-central.com/Computer/Programming/aiff-file-format.doc
566 * http://www.faqs.org/rfcs/rfc2361.html
567 * http://ghido.shelter.ro/
568 * http://www.ebu.ch/tech_t3285.pdf
569 * http://www.sr.se/utveckling/tu/bwf
570 * http://ftp.aessc.org/pub/aes46-2002.pdf
571 * http://cartchunk.org:8080/
572 * http://www.broadcastpapers.com/radio/cartchunk01.htm
573 * http://www.hr/josip/DSP/AudioFile2.html
574 * http://home.attbi.com/~chris.bagwell/AudioFormats-11.html
575 * http://www.pure-mac.com/extkey.html
576 * http://cesnet.dl.sourceforge.net/sourceforge/bonkenc/bonk-binary-format-0.9.txt
577 * http://www.headbands.com/gspot/
578 * http://www.openswf.org/spec/SWFfileformat.html
579 * http://j-faul.virtualave.net/
580 * http://www.btinternet.com/~AnthonyJ/Atari/programming/avr_format.html
581 * http://cui.unige.ch/OSG/info/AudioFormats/ap11.html
582 * http://sswf.sourceforge.net/SWFalexref.html
583 * http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
584 * http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm
585 * http://developer.apple.com/quicktime/icefloe/dispatch012.html
586 * http://www.csdn.net/Dev/Format/graphics/PCD.htm
587 * http://tta.iszf.irk.ru/
588 * http://www.atsc.org/standards/a_52a.pdf
589 * http://www.alanwood.net/unicode/
590 * http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
591 * http://www.its.msstate.edu/net/real/reports/config/tags.stats
592 * http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
593 * http://brennan.young.net/Comp/LiveStage/things.html
594 * http://www.multiweb.cz/twoinches/MP3inside.htm
595 * http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended
596 * http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/
597 * http://www.unicode.org/unicode/faq/utf_bom.html
598 * http://tta.corecodec.org/?menu=format
599 * http://www.scvi.net/nsvformat.htm
600 * http://pda.etsi.org/pda/queryform.asp
601 * http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm
602 * http://trac.musepack.net/trac/wiki/SV8Specification
603 * http://wyday.com/cuesharp/specification.php
604 * http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html