I have a Boss BR532 digital recorder with 4 tracks and 32 virtual tracks with 128 meg smart card. So I record all I want with the drums that are in the recorder, AND only then will I dump to computer. Right after that I then burn to disc so that none of my hundreds of hours of improv are lost due to the dreaded virus-prone 'machine'!
I hope you get your stuff back and post it. Looking forward to hearing your stuff.