Windows 7: BSOD in Win7 Ultimate !!!HELP!!!

Hello all.
I'm new to this forum and the main reason that i m writing is about a Windows 7 BSOD.
You can see my computer specs on my signature or in my profile.

The problem is that i have BSOD randomly when i m using my PC. The BSOD happens only in Windows 7 Ultimate. In Windows Vista Ultimate everything runs perfectly.
Here is the full story: I first installed Windows 7 Ultimate RC (when the RC1 become public for the first time and later the RC2) and after two or three days that everything worked perfectly I get the first BSOD and after that, every one to two hours I have a BSOD. I reinstalled windows 7 and again after one or two days, the same think happened. I believed that the main cause for this is the RC release that I was using. I performed a format and reinstalled Windows Vista Ultimate that I was running till Friday (two months now) with no problems at all. In Friday I got my Ultimate version of Windows 7 and I performed a clean install. Everything worked perfectly till today that the first BSOD came up again, exactly the time that ConvertXtoDVD finished burning a DVD. After that I keep getting BSOD all time.

I have run memtest for at least 8 hours but I cant find any errors on my memory. Also I have install all the windows updates. All the drivers is the ones that comes with windows 7 except for the graphic card that I install them from Nvidia site. Also the network and the Sound card drivers is the ones that Windows Update gave me.

The Software that i m using is:
Avast Professional
Photoshop CS4
Internet Download Manger
ConvertXtoDVD
Microsoft Office 2007 with SP2 and all the updates
iTunes
Revo Uninstaller
WinRAR
Windows Live (all the package)

Please help me because I m loosing my mind here…!
Thank u in advance and sorry for my English and the long text. )

Here is the Dump File

I would suggest that you maybe not use ConvertX to write the DVD. It seems to have installed a 3 year old driver and that could be the cause of the issues.

Using the program to convert video is fine. But use something else to write the DVD. I personally use ImgBurn

Thank u for your time but i have download the latest version.
ConvertxtoDVD.exe 3.8.0.193
vso_hwe.dll 4.0.4.462
avcodec.dll 52.30.1.245
avformat.dll 52.34.0.245
avutil.dll 50.3.0.245

This is the info ConvertX gave me aout his version.

Do u have the same version as me?
The debbuging of the dump file show this as the cause of the BSOD?

The file I am referring to is pcouffin.sys (low level access layer for CD/DVD/BD devices -- published by VSO Software) and it is installed along side ConvertX.

Try reinstalling the latest version of ConvertX. Maybe it will update the driver.

hmmm
is there any way to see my self the version of the pcouffin.sys that i m using?
I m upgrading the ConvertX right now and i want to check if the driver will change.

yes, sorry I didn't mention that before.

You can right-click on the file %systemroot%\system32\drivers\pcouffin.sys and go to Properties. The General tab will tell the date and the version tab will tell the version.

Thanx.

I just upgrade the ConvertX and now the driver of pcouffin.sys is: 1.37.0.0
Do we have the same now?

Yes mine is version 1.37.0.0

Creation date is October 7, 2009

I would seriously consider following sup3rsprts' advice.. To chose a program over system stability is foolish in my opinion...

ok mine creation, modified and accessed date is 22 October 2009 (all the same)...
This is the only error the dump file shows? i m asking u because the previous times i had BSOD i wasn't using ConvertX...