DVD Burner Will Not Burn At Slower Speeds

Hey guys!

I am currently having a problem with my DVD Burner. I have a Memorex DVD±RAM 510L v1 DVD drive and I am burning onto SONY AccuCORE DVD-R discs. I need to write at least at 4x on these discs, however, my average write speed every time I burn with ImgBurn is 6x. Even if I tell ImgBurn to write at 1x, 2x or even 4x, the average speed still comes out to 6x. I am assuming it is my burner that is causing the problems because the DVD-R’s that I am using says that it can be written on from 1x to 16x. Does anyone else have this problem? Is it a hardware problem or a firmware problem? If it is a firmware problem does anyone have the firmware that will allow me to burn at at least 2x speed?

Thanks in advance!

@ apodictic,

Welcome to the Forum.

Explain exactly why you need to Burn your Media at 2x Speed.

There is nothing ‘Wrong’ with your DVD Burner. It should be noted that with a Modern DVD Burner using Modern DVD Media through the DVD Burner Firmware and/or DVD Media Code relationship in many instances is unable to Burn DVD-R Media slower than 4x speed.

A modern DVD Burner using known proven quality Modern DVD Media will in fact Burn data at or near the DVD Media rated speed better than Burning the same DVD Media at excessively slow 1x or 2x speeds. That is a well-documented proven fact. To visually document this fact suggest visiting the CDFreaks DVD Burner Forum (http://club.cdfreaks.com/f61/) and closely inspect the numerous Disc Quality Scans posted in that CDFreaks DVD Burner Forum which will visually document this fact.

Perhaps you should consider different DVD Media instead of your “SONY AccuCORE DVD-R discs”. Suggest using known proven quality error free Media such as Taiyo Yuden or Verbatim Media which have an excellent proven track record of consistently producing quality error free results. When using known proven quality error free Media such as Taiyo Yuden or Verbatim Media you will be able to produce quality error free results burning this Media at the DVD Media rated speed or slightly slower and will not need to attempt at Burn this Media at excessively slow 1x or 2x speeds to obtain consistent quality error free results.



Thanks for the well-written explanation. I am ordering Verbatim DVD-R’s right now so I’ll let you know how that goes after I give them a test.


I have bought Verbatim DVD-R’s and I am still burning at around 6x. Any insight? Thanks!

@ apodictic,

Memorex does not manufacture any Optical Drives and your Memorex DVD±RAM 510L v1 DVD Optical Drive is actually a ReBadged LITE-ON DVDRW SHM-165P6S Optical Drive. Suggest Flashing your Memorex DVD±RAM 510L v1 DVD Optical Drive to the LITE-ON DVDRW SHM-165P6S Firmware version MSOR.

Suggest reviewing the CDFreaks “Memorex Burner Problem” (http://club.cdfreaks.com/f61/memorex-burner-problem-208341) thread and note Forum Member kukujin #17 posting comments on the LITE-ON DVDRW SHM-165P6S Firmware version MSOR Flashing procedure.

The LITE-ON DVDRW SHM-165P6S Firmware version MSOR should have more current Media Code write strategies than the Memorex DVD±RAM 510L MWS7 Firmware. Also flashing your Optical Drive to the LITE-ON DVDRW SHM-165P6S Optical Drive you can use the numerous Lite-On utilities similar to the OmniPatcher (http://club.cdfreaks.com/f44/omnipatcher-liteon-sony-optical-drives-v2-6-2-a-97590) to “Customize” your LITE-ON DVDRW SHM-165P6S Firmware.



I am trying to use OmniPatcher, however, everytime I try to load one of the firmwares, I keep getting a message that states that the file is compressed or scrambled. I read somewhere in the readme for the omnipatcher to download uncompressed files at http://dhc014.rpc1.org/indexOEM.htm or http://codeguys.rpc1.org/firmwares.html. for http://dhc014.rpc1.org/indexOEM.htm site, I can’t find the correct firmware. I downloaded from the other site and it stills says that the file is either scrambled/compressed. Once again any insight? Thanks!


this drive is not supported by Omnipatcher.
For crossflashing your drive to a Liteon (this is on your own risk), you need a “flashfixed” firmware. Get them fom http://codeguys.rpc1.org/.
You may also have a look at the “Read First” threads in the Liteon burners forum: http://club.cdfreaks.com/f44/

Regarding the burn speed: ImgBurn shows the supported speeds for the media you are using. It allows you to set any speed, but this setting is more or less ignored if the selected speed is not on the “list of supported speeds”.
Unfortunately I can’t access my own SHM-165P6S now, but it is not impossible that media like Verbatim or Sony is supported at 6x and higher. In that case, you can’t do anything about that.