Cant install windows xp on packard bell pav80 mini 10 "

I have the same problem with the 3 pc here in my shop 1st problem is DVD/cd Drive can't read the CD even the CD is new and no scratches. but if i tried plug it to other computer and load other cd its working so i had a conclusion that the CD drive is choosing what DVD/CD to read. so i change the DVD drive

now it's ok it can read my window xp service pack3 and now its loading but the 2nd problem is, when window xp load it will suddenly stop and displaying error saying missing boot.sys.dll press escape to exit.

now if this the same problem you are having. check your memory card.it seems that it has some inconsistency issues thy testing it using a memory card testing tools or have it replace

i wish my little knowledge may help you
rate me up if this solve your problem and let me know if i did help you
tnx