My box was signed and the CDs play OK on both my - ahem -
Linn player, also on my car CD.
At least they
did play in the car - the blooming thing ate another disc and I now need a Torx screwdriver to get it out, with no guarantee the player will ever work again. The usual pliers, coathangers and lump hammer have had no effect. So if the software doesn't get yer, the hardware will.
Maplin sell a very good Torx set, it's called the "Security Screwdriver" set or summat similar. I had to buy one to get into my Sky+ box to change the disk for a biggun.