I've got both the 107 and the 126 CDs and neither have ever "frozen" on me. They're not the easiest things to traverse when looking for something specific.
If I were them, I'd be adding copy protections since there are a bunch of ripoff artists on eBay selling CD-R copies. Then add something to it to make it more attractive than the old version. And then price it a little more reasonably.
But that's just me...
1988 560SL Black/Palomino
1988 300SEL Black Pearl/Burgandy
1984 500SEC Anthracite Grey/Palomino