just got a 1620 a few weeks ago and I can't get it to work with any of the 4X Ritek -R. I tried updating the firmware (now using G7P9, forgot what the orignal firmware was) and that didn't help. I have no problem with 8X Ritek G05 and with 4X BeAll (both -R).

this is what DVD Identifier reads for the Riteks:


---------------------------------------------------------------------------
Unique Disc Identifier : [DVD-R:RITEKG04]
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Disc & Book Type : [DVD-R] - [DVD-R]
Manufacturer Name : [Ritek Corp.]
Manufacturer ID : [RITEKG04]
Blank Disc Capacity : [2,298,496 Sectors = 4,489.3MB = 4.38GB (4.71GB)]
Recording Speeds : [1x , 2x , 4x]
[6x And Higher Might Not Always Be Detectable]
---------------------------------------------------------------------------
** 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 76 0e 14 88 9a 80 00 .@....R..v......
0010 : 03 52 49 54 45 4b 47 00 04 30 34 00 00 00 00 00 .RITEKG..04.....
0020 : 05 88 80 00 00 00 01 00 06 08 12 11 86 67 80 00 .............g..
0030 : 07 88 80 00 00 00 00 00 08 05 1b 0e 10 08 09 00 ................
0040 : 09 97 06 0d 0b 80 00 00 0a 00 00 00 00 00 10 00 ................
0050 : 0b 04 1d 18 a8 88 85 00 0c 89 ac 88 80 00 00 00 ................
0060 : 0d 00 00 d0 00 00 00 00 00 00 00 00 00 00 00 00 ................
0070 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0080 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0090 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00a0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00b0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00c0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00d0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00e0 : 00 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 ................
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[ DVD Identifier - http://DVD.Identifier.CDfreaks.com ]
---------------------------------------------------------------------------

I am using Nero 6.3 (doubt that it matters but will try out 6.6)

I am also using the Nvidia IDE drivers. Will be formatting soon and will stick with the MS driver.

Anyone?

Try updating to B7T9 (Latest Firmware), i've burnt 2 differnt brands of Ritek G04, both perfectly acceptable quality burns on the Benq

i have been using the ritek g04s with the 1620 with no problems, but it only burns at a 4x and no slower.

That media burns valid at 4x and no other speed (using the 1620).
You will find that with most of the DVD-R 4x medias.

I am having the same problem with Memorex -R 4X media.

The drive burns Teon 8X just fine. But I get coasters with InstantCopy and Nero burning Memorex at 4X. Have B7S9, going to try T9.

I've seen other post which say this 4X media works, but I don't know how.

I've been using 4x Dupsonic's without an issue since I got my BenQ. They have a media code of VANGUARD. They are also DVD-R's.

It sounds like you guys may have a bad flash. Have you tried flashing back to B7L9 in Safe Mode and then restarting into normal mode and doing a burn. After you do that burn restart in safe mode then go back to B7S9 or B7T9 (whichever you prefer) and then restarting and trying to burn again? Might be worth a shot.