no it allows you to choose what sample rate, so just choose the same and it makes no sonic difference. i do wish i could record it direct to wavelab from the dat deck though. keep that chain as pure as possible, the use of the r4 seems like an unnecessary step. i guess i might have to revert to SF after all. ive transferred hundreds of tapes w/ SF & this sound card without issues in the past. ive gotta have a dependable coax interface w/ my machine for future stuff, that works longer than 30min.