I like mixtapes. The Expert of MJEX fame has a cracking one over at
The Slate, and some others I'd recommend include
Hot Chip's DJ Kicks (a seriously ecletic collection of party tunes), and
Superpitcher's Today (Kompakt-flavoured minimalist-techno goodness). Thing is, I can't scrobble the individual tracks when the mixtape is stored as a single MP3 file - if you really want to create a record of each of the songs you're listening to, you need to slice up the master file using something like Audacity, save the individual files, and then craft the ID3 tags by hand. Yes, I actually have done this - now you know what I did with my time before I became a parent.
Anyway, it'd be great if it was possible to store the ID3 tags of
n songs, (maybe their start/finish position?) within the file data. I remember reading somewhere about a French company who've released a new music file format that stores the individual "modules" of a song (drums, lead guitar, vocals, etc.) within the file, as well as the song
entière itself. Something like that would be cool. I'll post the link to that article here if I can dig it up.