When re-mastering with the BCD-1 the signal is sampled, recorded and converted by ADC. Then playing back on the BCD-1 the signal is processed again.
I believe this works because of the low jitter of the BCD-1. The ADC introduces some jitter back into the recording, but it's then corrected again by the BCD-1.
So my question is, is the signal oversampled 2 times or 3 times in this process?
Are the stunning results from this process made possible because of the low jitter?