what Am I Doing Wrong?

[dalifit]

1. BT4 DVD was perfectly burned using imgburn
2. Bt4 DVD used in HP NX9420 and booted ok
3. I have installed BT4 on the VAIO!!!

I've managed to boot in BT4 by copying the BT4 directory on the hard disk.
It seems that the Blu-ray Disc Drive can not find the BT4 directory.

I select BT Console and when the graphics screen comes up, i get the following error
ATA5.00: revalidation failed (errno= -5)

Then it says
Starting Linux Live scripts
and after a few more lines I get:
Looking for 'BT4' data directory - (searching for livecd.sgn file)
Fatal error occured - BT4 data not found

And asks to press control-alt-del

Anyone who might tell me where to look for and what to do?

[xorred]

mind telling us which tutorial have you followed? Are you sure you did all steps as suggested by it?

[imported_SuspectZero]

did u do an md5 check before burning the dvd :S