The RipFlash I use has both internal memory and a slot for a SmartMedia card, so in theory, unlimited time. The unit has 128 MB internal, plus I have one 128 MB card, so doing the math for 128 kbit MP3 (16 kilobytes/sec):
256 Megabytes / (16 kilobytes/sec) = 16384 seconds = 4.55 hours
So about 4 1/2 hours in the current configuration, which has been enough to record all the tunes, and technique demo during the workshops I’ve attended. Of course if you’re willing to sacrifice a little quality you can go to 96 or 64 kbit and get more time. If you want to record every minute of every class, then minidisc is a better way to go, but generally, I find in classes, a lot of time is spent with students playing, mostly caucophony, so I just record the instructor demos and discussion.
The Ripflash runs on 2 AAA batteries. I use NiMH rechargeables, get about 3 hours use. I keep one extra set of batteries with me, recharge them overnight.
One thing though, at least on all the RipFlash units, the internal microphones are not very useful, you really need to use an external preamplified mike to get a high quality recording. The internal mikes are fine for grabbing a tune at a session, but the results generally aren’t better than a typical voice recorder, with the external mikes, the results are really quite good.
Once I have the workshop tunes/lectures captured, I transfer them to the PC using the RipFlash’s USB interface, there I can edit them, make audio CDs, slow the tunes down with ABCMus, etc. I don’t have to spend hours transferring MDs to the PC.
Cheers,
Michael
[ This Message was edited by: eskin on 2003-02-19 11:12 ]