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Topic: tag2 Comment Field, Confusion in winamp< Next Oldest | Next Newest >
tonyhughes
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Posted: Aug. 26 2002,20:49

This program does what I've wanted for a long time. The ability to search for terms in tags. I wanted to search for comments enterd via winamp. A few tests and it works, how exciting. Then I noticed  some entries didn't seem to pass the search filter. Then I was totally baffled when I noticed the tag2 comments box in winamp's panel and tag2 in 'mp3TagStudio' often show completely different entries.  I soon found the  advanced info panel with its additional frames section. The current file had an extra 'comment' showing here, and this is what winamp displays. This comment is described as MusicMatch_bio, _prefs, etc. Of my downloaded files, around a quarter have between 1 and 4 of these MusicMatch comments fields. I can't imagine why winamp gives priority to these over the standard comment field. Editing a comment via winamp changes this MusicMatch field, not the standard field. Deleting one musicmatch comment brings up the next one in winamp, until all are deleted, when winamp displays the comment in the standard field.  This has one disastrous effect. mp3TagStudio seems to search the standard comment field, so entries made via winamp MAY not be seen, additionally I can't tell from the winamp panel where my comment is going. I can't see a match for these in the drop down menu, but 'media type' removed some but not all of them. I found the remainder using windows explorer "search for text string within file", entering "musicmatch". I could then go straight to the offending files without having to step through every one. Not every musicmatch field blocks standard comments, I started trying to systematically record what was happening, but I'm afraid it got too confusing, and I just removed them all. Is there a way to find the 4 letter code for these so I can find and remove them more easily? They don't seem to correspond with anything in the list.  
In my opinion the real offender is winamp for showing musicmatch comments in place of the standard comment field.(same with 2.80 & 3) I can't see any preference setting there, and a brief search of winamp forums for "comment field" showed nothing relevant either.
I am delighted with this new program, it is so useful that I decided within one day to register it.
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Magnus Brading
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Posts: 2751
Joined: Aug. 2002
Posted: Aug. 27 2002,01:53

I'm glad you like the program Tony, and thanks for being honest and registering it.

Just as you suspected, Winamp is treating the comment fields in a bad way. My guess is that they only handle the different comment frames depending on their ordering inside the tag, and in that case you will not be able to find any other kind of system for which fields are "blocking" which.

Anyway, you were asking for the frame ID for ID3v2.3 comment frames, right (I'm not completely sure, please tell me if I misunderstood you)? It is "COMM". The problem is that all comment frames have this frame ID, so you can't use this to separate the musicmatch frames from the normal comment frames. They differ only in the content descriptor, which is a null-terminated string that you will find 8 bytes after the start of the frame ID of each comment frame. In normal comment frames, the content descriptor is usually empty (i.e. an immediate null-termination byte).

Just ask if there's anything else you'd like to know, and I'll see what I can do.

PS.
For some reason you seemed to have duplicated your post, so I deleted one of these identical threads.

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1 replies since Aug. 26 2002,20:49 < Next Oldest | Next Newest >

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