Some programe input/output Error

the issue seems to be with the CD rather than a bug

Try making a new Ubuntu Cd using a cheaper 'write once' cd rather than an expensive and possibly specialist data dvd. Cds tend to burn slower than dvds which helps a lot :)
https://help.ubuntu.com/community/BurningIsoHowto

Good luck and regards from
Tom :)

I had been checked the MD5sum before I burned a DVD iso using in K3B. And I use the low speed(2.4x) burn into DVD.
And I had been checked CD for defect is no problem.

Can I using in 8.04 upgrade to 9.04?

I boot-up 9.04 have this message:
..MP-BIOS bug:8254 timer not connexted to IO-APIC
I add the "noapic" when boot-up. But my blue tooth mouse can not detect and using.
How to fix this?

Tks for reply!!
=-]

Yes you can upgrade 8.04 to 9.04 but this needs to be asked as a separate question
https://answers.edge.launchpad.net/ubuntu/+addquestion

And the bluetooth question sounds like someone can solve that too, again please post as a separate question
https://answers.edge.launchpad.net/ubuntu/+addquestion

Sorry, i just fon't know the answers to these questions but when you post as a new question it will pass by the front desk where there are lots of people that will probably be able to help :)
Good luck and regards from
Tom :)

I will separate the question of bluetooth problem.

Thanks for reply!!
=-］