What suggests a good transfer?

[SundayDriver]

I'm wondering what really suggests a good tape>wav transfer. Below is a spectral and freq analysis of a generated tape that was converted to a wav file@44kHz. A Denon tape deck was connected to the PC, and recorded using Gold Wave. It sounds good, and is apparently lossless, but I'm concerned with what technically makes it a good transfer. Is there something specific I should be looking at in the spectral/freq. analysis? Why would the freq. show if the tape was running off speed. :hmm: Thanks!

Spectral:
http://www.crsid.com/whatitis/spectral.bmp

Freq:
http://www.crsid.com/whatitis/freq.bmp

[SundayDriver]

one week and a bump :wave:

[Five]

it looks like the left is a little weaker than the right. run analyze > statistics. you can also see how close the dc offset is to zero there. Mainly with the FA and SA the purpose is to see how high the frequency response is going, in this case it looks like the original souce maybe goes up to 13kHz. There's a mirroring effect showing especially on the left channel, this could be evidence of a poor soundcard (SB?).