Converting between the two is a bad idea if you can at all avoid it however. They're both 'lossy' formats, which means they discard some data in order to have smaller filesize. The thing is, each format discards different data. Luckily a lot of people won't actually be able to notice the slight loss of quality, so if you must you can still make the conversion and use the files. Note that converting from one into wav (which is lossless) format and then to the other won't help; The disgarded information is gone forever from the file once it's been compressed into mp3 or vorbis.

What this means is that you should either try to get the music/sound in wav (or some other lossless format) and convert that to your format of choice, or should request that whoever produces the music/sound provide it to you encoded in the correct format.

I understand that this sometimes isn't actually an option, but I just thought I'd bring it up. [smile]