Problem reinstalling xp?

[jefft]

After various problems I decided to reinstall xp home oem.
reformatted h/d,starts installing but hangs after 35% of setup is copying files. this is my 2nd attempt the 1st one stopped at 30%. please help :                                                        

specs:400 psu,amd athlon 2000+,1024pc133sdram,M/b k7sem ECS,dell 17"lcd,Maxtor 40g h/d,lite-on cdr,samsung dvd, floopy/d,Leadtek Geforce2 mx64.

[Fed]

Test your ram. http://www.memtest.org/
Let it run for a couple of hours.

[jefft]

Could you please explain how?

[Fed]

After you unzip the downloaded .zip file you will find a readme.txt.
Here is part of what it says.

For Windows, unzip the package into a directory like C:\memtest, insert a
    blank floppy into your a: disk drive and run the install.bat file. As the
    install prompts you, to use memtest directly, leave the disk in the drive
    and reboot your machine.

[patio]

Also check that CD for scratches/smudges...

patio.