I get the following error with my Panasonic UJ-815A slim slot-loading drive when trying to format using InCD 4.0.1.21:

01c8 03:08:27 20:15:03:00 e=0. SetEnumErrLevel: errorlevel was 1 [Dflt], is n
ow 2 [Fine]
01c8 03:08:27 20:15:03:01 e=0. -- Starting C:\Program Files\Ahead\InCD\InCD.exe, version 4.0.1.21 --
01c8 03:08:27 20:15:03:02 e=0. Filesystem reports internal version 3.0
01c8 03:08:27 20:20:04:13 e=0. Media is a DVD+RW or DVD-RAM.
01c8 03:08:27 20:20:04:22 e=2007. SCSI error : (Op 5Ah (ModeSense10) => os=0h host=0h tgt=0h sns=05/24/00h Invalid field in CDB Info=0h=0. @ ID=0_0_0_0 'MATsh*tA DVD-RAM UJ-815A')
01c8 03:08:27 20:20:04:03 e=2007. SCSI error : (Op 5Ah (ModeSense10) => os=0h host=0h tgt=0h sns=05/24/00h Invalid field in CDB Info=0h=0. @ ID=0_0_0_0 'MATsh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:20:12 e=0. Media is a DVD+RW or DVD-RAM.
0e20 03:08:27 20:20:20:24 e=2007. SCSI error : (Op 5Ah (ModeSense10) => os=0h
 host=0h tgt=0h sns=05/24/00h Invalid field in CDB Info=0h=0. @ ID=0_0_0_0 'MATsh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:20:01 e=2007. SCSI error : (Op 5Ah (ModeSense10) => os=0h
 host=0h tgt=0h sns=05/24/00h Invalid field in CDB Info=0h=0. @ ID=0_0_0_0 '
MATsh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:27:05 e=0. Media is a DVD+RW or DVD-RAM.
0e20 03:08:27 20:20:27:08 e=2007. SCSI error : (Op 5Ah (ModeSense10) => os=0h
 host=0h tgt=0h sns=05/24/00h Invalid field in CDB Info=0h=0. @ ID=0_0_0_0 '
MATsh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:27:09 e=2007. SCSI error : (Op 5Ah (ModeSense10) => os=0h
 host=0h tgt=0h sns=05/24/00h Invalid field in CDB Info=0h=0. @ ID=0_0_0_0 '
MATsh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:27:21 e=2007. SCSI error : (Op 5Ch (ReadBufferCap) => os=
0h host=0h tgt=0h sns=05/30/02h Incompatible medium format Info=0h=0. @ ID=0
_0_0_0 'MATsh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:31:10 e=2007. SCSI error : (Op 04h (FormatUnit) => os=0h
host=0h tgt=0h sns=05/26/00h Invalid param list Info=0h=0. @ ID=0_0_0_0 'MAT
sh*tA DVD-RAM UJ-815A')
0e20 03:08:27 20:20:31:11 e=2982. Error executing Format Unit operation.(EDev
iceAddError os=0h host=0h tgt=0h 05/26/00h @ ID=0_0_0_0 'MATsh*tA DVD-RAM U
J-815A')

DVD-RAM is not yet supported. It will be added in a future (free) update.

(in reply to hailstorm)