Multi-Burner Ultrabay Slim Drive

[akhavan]

Hi,

I have made DVD-RW in my Multi-Burner Ultrabay Slim Drive (MATSHITA DVD-RAM UJ-812) in T41P and it works fine.

But when I put my CD-RW/DVD (DVD/CD-ROM) in my T41P it can not see / read the DVD-RW why? What am I doing wrong?

What format would work for both?

Thanks

Sepehr