DVDx and RAM input

[cdw]

On my pc I recently added 2 laths of 128 Mb Rimm RAM (PC800) NON-ECC each. So I normally should now have a 512Mb (4x128Mb) RAM as also shown in configuration screen system. The SiSandra programme also indicates 512Mb. But I now am confronted with following problem :

Using the DVDx 2.3 programme I would like to convert a DVD in AVI-format. "Input Setting" under "Save your DVD drive" asks for input of a RAM-value. It is advised to input half of the total value which in my case would be 256Mb.
But I can only input a maximun value of 128Mb ??? When I input 256Mb the programme won't work and displays following message :
Cannot allocate memory for the temporary buffer.
OS : Windows Millennium

Who can help me ? What freeware or trail version can I use to verify whether or not the 4 x 128Mb memory functions properly ?

Many thanks and best regards.

Chris

[cdw]

Is their no person that can tell my what is wrong with RAM and DVDx.

Thanks for your respons

Chris