QUOTE(Soundhog @ Nov 9 2006, 14:24)

Ok, thanks for all that. A couple more questions, though. Can you change and edit these Vorbis tags in Winamp, or do you need to use another programme?
Quite a lot of players/taggers can read and edit Vorbis comments, including foobar2000, MP3tag and also Winamp, although the latter doesn't support masstagging. You can only edit the tags file-per-file using it.
QUOTE
Also, when I do convert from Flac to MP3, will the converting software safely be able to read the Vorbis files, considering they would be less standard that the IDV tags?
Talking of "less standard" doesn't make much sense in the case of FLAC, since Vorbis comments are the only available official standard for this format. If you're referring to ID3 being "more standard" because of MP3's popularity, please don't forget that ID3's supported only by few further formats, like WavPack, OptimFROG and Monkey's Audio, as shown in the
Lossless Comparison Table. ID3v1 is also very limited and ID3v2 is known to be completely unreadable by many hardware players, especially ID3v2.4 tends to cause problems. But if you really insist on tagging with ID3, then think about using one of the lossless codecs I mentioned above instead of FLAC.
And yes, a good converter is able to read the Vorbis comments and transfer them to MP3's ID3 tagging scheme. At least foobar2000 and Winamp do so, although Winamp doesn't transcode to MP3 without paying for the Pro version.