Re: SD card - tracklistings –
28-08-2009,05:12 PM
Not trying to teach anyone to suck eggs, but MP3s have tags called ID3 that carry metadata about the Track. Things like Artist, Album, Year, Genre and Track Number. I would hope that the MMI reads these tags on the MP3 files.
In ID3 version 1, and 1.1, this was very simple - as there is 128 bytes at the end of an MP3 file and each field has a fixed length. If you want to put the Track Number information in your MP3 file it goes into the last two bytes of the Comment field, which is 30 bytes long; last byte actually - there is a null separator.
In ID3 version 2, all this became more complicated... however, you'd more than likely always use a tool to manipulate these tags anyway. Then you can set the Track Number from any asset in your MP3 file... maybe you have named the Tracks like "<##>, <name>.mp3" or "<name> (<##>).mp3", it shouldn't really matter as you can tag it properly using a tool. There's lots around - Google something like "mp3 tagger" or "id3 tagging" I'd guess.
Then, no matter what format you have your MP3 file names in, you know that the Track Number field is filled in via the ID3 tag - then you'd hope the MMI reads those and sorts the tracks in number order rather than alphabetical.
I'll get my car this coming Wednesday, so I have all this to look forward to.
Last edited by Hippogriff; 31-08-2009 at 03:11 PM.
Cheers, Hippo
A4 2.0 TDI 150ps Black Edition (B&O, AMI, flat-bottomed steering wheel), alcantara, heated front seats, PQ6 wheels, technology package, Audi Connect, advanced key, interior light pack, folding and dimming mirrors, parking system advanced, TPMS