I used a Lexar 80x 2GB @16/44 to get the Foo Fighters in a Club last Monday nght.
(I buy these 80X to use in my Nikon D70 but I think the much more affordable Kingston Pro will do fine)
The show went 02:18:00 and the battery was ok.
With a 2GB card on 16/44 the recordng time is shown as 03:22:00
I have since let it run till dead 4 times and it has recorded for a little over 3 hours each time with lexar 2GB 80X@16/44 WAV
I just ran it out on 16/96 MP3 from a full charge as a test and it lasted 04:27:25 much closer to the advertised 8 hours but I dont plan on recording anything less than CD quality at the very least
This was my virgin attempt and I learned a valuable lesson...I need real microphones that can handle SPL, as the whole show is clipped to hell and total trash but I am keeping the recording as a lesson. I made the total newbie mistake of trying to use the stock little T mic. Oh well at least it can be used as evidence with the wife of why you need to buy REAL stuff to get a good recording.