I've been researching similar systems for vinyl archiving and transfer. Two hard-disk recorder products come to mind: the Tascam DV-RA1000HD and the Alesis Masterlink ML-9600. The Tascam recorder will support up to 24-bit resolution at sampling rates as high as 192 kHz (DSD or PCM). The Masterlink can handle up to 24/96, but seems most suitable for Redbook CD. Both units seem like excellent value for the money; the Tascam has a street price of $2K and the Masterlink can be gotten for just under $800.