Yo Da Bro DAn etc:]
As far as I know, a data disc is for recording digital music. If your Sony is just a "playing" box, you won't hear anything from a 4/8 track data disc on a ?two-track device.
You can buy two track data discs to record; but, again, I don't know if they will play on your Sony. If your Sony is only a playing box, then it can't play data discs which are used to record multiple track recorders.
Hope this helps, but you can check with Tascam/Sony on line.
Green Hornet