I got corrupt disks from shipit

[utsav]

I ordered 25 kubuntu disks frm shipit to distribute in my school which i got two days back but all the disks r showing crc error during loading of kernel during booting.i checked the disks integrity and found all of them r having 7 files damaged.what to do now? plz suggest

[dOm1naTOr]

Do a used same drive? maybe due to drive problem

[utsav]

Ubuntu disks ordered frm shipit work fine on it

[dOm1naTOr]

just to be sure, try temon another drive, coz some disks may shows such errors on specific drives. Its common.

[praka123]

why so much hassle?u can verify with md5sum,kubuntu md5sum is given in ubuntu.com download cd image page.compare it with the md5sum of ur kubuntu cd which u got from shipit.
I assume,u already have a hdd install of any linux distro.so,insert the kubuntu cd in the drive and let the drive mount it.now,run in a terminal(konsole?) "md5sum /dev/hda" or /'md5sum /dev/dvd" and wait for whether the verification is successfull or not.