thanks for your instant answer.
It would be desirable, if someone could extract the AX12 Firmware for testing by other user.
But i agree to you, that the stats would be a better advice, if the absolute number of tests for each Firmware were published too.
The intrinsic reason for my post was the hope, that the AX12-Firmware is a modified one, who can handle the newer media that are actually offered in the ordinary stores. But it seems, that i have to modify the software by myself to use media like Verbatim+R DL 8x with this hardware. Otherwise i have to buy a new one...