i run:
cfaudio > eidio dual CF pack w/ battery > ipaq35xx > 4 gig hitachi CF microdrive @ 16/48
so far no problems with stability (the display does some funny things sometimes, but no samples are dropped). i preallocate 2x 2 gig files (i make them that big because i do not want to join the wavs by hand, and sometimes 1 gig is just not enough)...
the issue i have is power. i can run a little over an hour and a half before the seidio battery dies, and even though i have plenty of juice on the ipaq battery, once the cf pack battery dies, the recording shuts down - totally salvageable, but it will shut down...
i bought a second battery, and was going to try hotswapping them, but havent gotten around to it. if that works, it would be an awkward solution to my problem. i also found a 4xAA pack that plugs into the seidio, and i want to try that out, too - i just havent...
the only thing is that the ipaq can be finnicky(sp). i carry a 32 MB card with the restore info because roughly half of the time, i have to restore the ipaq before using it. this takes about 5 minutes in the field, which means i always have to start recording early, so if the ipaq sh*ts on me, i can restore it before the band starts playing (giving me effectively an hour and a half before the CF battery dies). this is another reason i like to set things in live2496 parm file. i have that thing all lined up, and sometimes i have two - so that i can preallocate and then record to specific files, and one parm file for each set - that way, all i have to do between sets is close the live2496 program, rename the parm files, and restart the live software. this would work indefinitely, but like i said, i am still having power issues in the field...
i have no idea about higher sample rates and word lengths. i use an oademodSBM-1, and until they make a v3 the size of the sbm1, i am sticking with modded sony unit...