[lug] ubuntu installation problem

Hi guys,
         
           I have a problem regarding installation of ubuntu,
 system :
 Amd athlon 64
 asus k8n4-e motherboard
 512 mb ram
 geforce 6200 video card.
           Whenever i try to install, it as on booting it asks for language and that all then
on the third or fourth step when it mounts all the needed things at 12% progress while copying   
"e2fsprogs.udeb" file it gives error reading cd while i tried five different cds which all worked on other computers
also tried some forums regarding it but found only one such question which has been unaswered,
  Has anybody come accross such thing or any body can suggest me anything?
   I also wanted to know if for running programs containing heavy graphics like autocad or maya or games like hl2, fear
do i need any better card then i already have ,means will it make any major difference on system performance or it won't make
any visible difference.
                 thanks,
                    parth

 

[
By the way i also provide linux distributions at low price
   I am providing it cheap because i myself buy it in dollars as they are released and know they are very costly for anyone in india
   if interested in buying any distribution check out below
 
      
1.Suse Linux 10.0 (5 Cds) + mandriva 2006 DVD + ubuntu 5.10(1install+1live 32&64 bit both are available)
starting bid 225/- shipping 0/-
   http://cgi.ebay.in/ws/eBayISAPI.dll?ViewItem&item=7210864574&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1

2.Debian sarge (1)DVD+ fedora core 4 i386 DVD
starting bid 150/- shipping 0/-
      http://cgi.ebay.in/ws/eBayISAPI.dll?ViewItem&item=7210865653&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1
 
debian 3.1 2 DVD set + 3DVD source code ,will be available soon .

     I am using ebay just for security on both sides , if you want to buy it instantly without bidding or buying through ebay then mail me i also offer paypal account transactions
Well if one item has already been bidded on then mail me i will open up another buy it now listing
in either case mail me at parth100parth@yahoo.com
]