I have a fragment of a post from a previous thread, but unfortunately no identification for the thread:

"On the chance that someone else might be interested in this type of device, one example is at Sabine. Sabine Click on the "music accessories" rolldown, and look for the

BackTrak BT-316M Digital Decoder/Sampler (16 bit) or
BackTrak BT-300 Digital Decoder/Sampler (8 bit)

Sabine also refers to these devices as "Phrase Trainers."

Sample (input) time is limited to about 30 seconds, and playback at the slowest speeds reportedly produces some distortion, but you can "snatch" the difficult parts and slow them down for study without pitch change.

"An associate reports that he purchased the BT-300 a few months ago for about $100, so it's not something to pick up if you don't need it.

The thread in question may have been a couple of years ago. The "associate" was my bald-headed pot-bellied bow-legged son, who has been (reluctantly) admitted back into the family since his marriage to a sweet young lady who needs all the help possible to try to reform him. I know he has made reference to still using his BT300, but he's a long-haul trucker now so it may be a couple of weeks before he's back in touch.

John