When I look at some Optodisc +RW 4X media, OP4, I get the following messages for DVD Identifier:
[22:29:51] DVD+R/+RW Medium Detected. Starting Identification...
[22:29:51] ** Initiating ADIP Retrieval Method 1 (Original ADIP)
[22:29:51] ADIP Read M1 Failed : Illegal request - Invalid field in CDB [05/24/00]
[22:29:51] ADIP Read Method 1 Not Supported ; A Firmware Upgrade Is Recommended
[22:29:51] ** Initiating ADIP Retrieval Method 2 (Copy Of ADIP)
[22:29:51] ADIP Read Method 2 Completed Without Errors
[22:29:51] Disc Identification Completed Successfully

I am using a Pioneer 107D with the 1.16 firmware and I am wondering what the ADIP M1 errors are referring to? I am able to burn and read the discs I turn out but I am concerned that there is a potential problem. When I check out Optodisc -RWs and a few other -R discs I get no such errors.

Much thanks.