Hello tmbinc,
I got a crash if I booted from CF, had a Swap-File on CF and copied a big file (2GB+) from hdd to hdd and after 2 minuites, BANG! Otherwise I can record something and after 10-30 minutes, bang. If you switch DMA off, a crash needs a little longer ...
I believe that it is not important which disc or CF card you have since I have tried 2 different discs and 2 CF.
After booting from hdd and swap on hdd, copying and recording without problems and uptime over a week. CF can be mounted and accessed as long as the load is not too high.
LetMeSmile.