Dvd-r Dl?

[A03]

It could be your firmware needs updating or Since Like I said earlier DL Discs are still somewhat in a early phase likely you might want to wait till later versions of DL discs to arrive..Be patient, also at the time Some burners doesn't recognize DL discs even though they might support DL burn..
Give it some time, that's why yours gave out when you said you made few roller coasters..
Believe me when I first purchased A03 when it first came out I purchased 5 Verbatim DVD-R's which ran me $45.00 dollars and in the End all of them I made Roller coasters b/c I tried backing up Devil May Cry only to find out at the time NTFS Format is a must(Nowa days you can Burn DVD on FAT32)..
For that price I could of purchased a another PS2 game..