asdfg wrote:
I have an MP3 player capable of playing AAC format as well as MP3.
All of my music in currently in MP3 format.

Should I convert my MP3 files to a slightly lower bitrate AAC? Is
96kbps AAC any good? - because if I converted tracks to that I'd get
a lot more on my player.

Overall, what are people's opinions of AAC?

IMHO? Slightly better than MP3 but not so much better as to be worth the
lack of portability. Personally, I'm sticking with 320kbps mp3 for
commercially available releases and FLAC for b**tlegs