frustration... My pc locks up 3/4 through a backup..question...

[I Like to Rip]

My pc keeps locking up either 1/2 or 3/4 the way through a backup. I've got to track23.raw.gz of Unreal tournament. I am curious if there is a way I can ####t a rip at track23.raw.gz instead of ####ting the backup all over again. I'm sure my pc is locking up do to winblows 98, but instead of fixing it i am hopeing I can just ####t the rip where it left off. Really appreciate any help.

btw this is on a U.S. dreamcast. Im using serial upload slave to boot the DC and teraterm pro for terminal program. also using the dcrip.ttl macro for the download.