Thanks to Maxell USA for providing this early sample disc:
---------------------------------------------------------------------------
Unique Disc Identifier : [DVD-R:MXL RG04]
---------------------------------------------------------------------------
Disc & Book Type : [DVD-R] - [DVD-R]
Manufacturer Name : [Hitachi Maxell Ltd.]
Manufacturer ID : [MXL RG04]
Disc Application Code : [Unrestricted Use : Consumer Purpose]
Recording Speeds : [1x , 2x , 4x , 6x , 8x]
[6x And Higher Might Not Always Be Detectable]
Blank Disc Capacity : [2,298,496 Sectors = 4,489.3MB = 4.38GB (4.71GB)]
---------------------------------------------------------------------------
** INFO : An Empty Writable Disc Is Recommended For Accurate Results
** INFO : Drive = MAD DOG MD-16XDVD9 [FW 2.FA]
** INFO : Write Capabilities = DVD+R DVD+R-DL DVD+RW DVD-R DVD-RW
** INFO : Disc = [DVD-R:MXL RG04]
** INFO : Write Speeds (Supported By This Drive On This Disc) Listed Below
** INFO : GET PERFORMANCE Write Speed Descriptor(s)
Descriptor #1 = 5540 KBPS ( 4.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 2770 KBPS ( 2.00x) - [CLV/Non-Pure CAV]
** INFO : MODE SENSE Write Speed Descriptor(s) [Legacy Command]
Descriptor #1 = 8467 KBPS ( 6.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 7056 KBPS ( 5.09x) - [CLV/Non-Pure CAV] - [Invalid Entry]
Descriptor #3 = 5645 KBPS ( 4.00x) - [CLV/Non-Pure CAV]
Descriptor #4 = 4234 KBPS ( 3.06x) - [CLV/Non-Pure CAV] - [Invalid Entry]
Descriptor #5 = 2822 KBPS ( 2.00x) - [CLV/Non-Pure CAV]
Descriptor #6 = 1411 KBPS ( 1.00x) - [CLV/Non-Pure CAV]
** WARNING : Drive May Have Returned Incorrect Descriptors
---------------------------------------------------------------------------
** WARNING : Some Drives Do Not Return The Entire 'Media Code'-Block
When Dealing with Discs That Are Rated 6x And Higher.
** INFO : Hex Dump Of 'Media Code'-Block Listed Below
** INFO : 4-Byte Header Preceding 'Media Code'-Block Discarded
** INFO : Format 0Eh - Pre-Recorded Information In Lead-In
0000 : 01 40 c1 fd 9e d8 52 00 02 85 0e 0d 99 ab 80 00 .@....R.........
0010 : 03 4d 58 4c 20 52 47 00 04 30 34 00 00 00 00 00 .MXL RG..04.....
0020 : 05 88 80 00 00 00 02 00 06 09 0b 15 87 78 90 00 .............x..
0030 : 07 88 80 00 00 00 00 00 08 08 13 0d 11 0c 08 00 ................
0040 : 09 95 07 0e 0b 78 88 00 0a a0 00 20 00 20 10 00 .....x..... . ..
0050 : 0b 09 19 17 97 88 85 00 0c b6 89 2b 82 30 23 00 ...........+.0#.
0060 : 0d 00 00 d0 00 00 00 00 0e 09 23 35 2d 25 19 00 ..........#5-%..
0070 : 0f 50 17 27 15 98 b5 00 10 88 80 00 00 00 00 00 .P.'............
0080 : 11 00 00 00 00 00 00 00 12 09 2d 37 2f 2d 19 00 ..........-7/-..
0090 : 13 50 1d 2b 15 a8 b5 00 14 88 80 00 00 00 00 00 .P.+............
00a0 : 15 00 00 00 00 00 00 00 16 09 3c 45 3d 20 29 00 ..........<E= ).
00b0 : 17 70 1f 2f 1a a7 b5 00 18 88 8c 00 0c 00 0c 00 .p./............
00c0 : 19 00 00 00 00 00 00 00 1a 08 53 44 3d 2c 21 00 ..........SD=,!.
00d0 : 1b 70 1d 2c 13 6b b5 00 1c 88 8c 00 0c 00 0c 00 .p.,.k..........
00e0 : 1d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00f0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
---------------------------------------------------------------------------
[ DVD Identifier - http://DVD.Identifier.CDfreaks.com ]
---------------------------------------------------------------------------
Unfortunately it is appears to be only 4X supported with firmware 2.FA on NEC 3500A.
I’ll check some other firmwares.