As I recently got a DH20A4P (September 2007, 9P53), I wanted to make a direct comparison with my LH-18A1H (November 2006, HL05), running as an LH-20A1H, LL0C and also crossflashed as another DH20A4P, 9P53. The media used is 3 consecutive TY T03 discs from a TDK spindle. In the posts below, the order of the graphs is as follows:
- A1 drive with A1 firmware LL0C
- A1 drive with A4 firmware 9P53
- A4 drive with A4 firmware 9P53
On the A1 drive the EEPROM was restored before the test and OPC was cleared before each burn. The A4 drive is brandnew, first burn with this media. SmartBurn settings were not used, no booktyping either. Both drives are on USB (ALi and Cypress resp.) and 16X burn speed was selected.