DC Burning Problem

[EViL386]

Hey guys sorry if this is in the wrong forum but,
a few days ago I downloaded and created self booting images for SMSplus 0.2 and DreamSNES, Imaged and burned using settings: RAW DAO, 4x speed. they worked fine. I know these emus have nothing to do with you but heres my problem.
when I downloaded DCHakker CDI and burned it at RAW DAO, 4x Speed and put it in my dreamcast, it reads the disc fine then when it finishes the dreamcast logo the GDRom Goes mad and starts making wierd noises, after about 20 seconds it returns to bios menu. Any Ideas people? thanks

-edit-
######System Information #######
Alcohol 120% Full Version
Windows XP Professional 5.1 Service Pack 1 (Build 2600)
Processor info: AMD Sempron(tm) 2600+ (1837MHz)
PIONEER DVD-RW DVR-109

[EViL386]

pls help

[Ivan]

Try to open a disk on a computer
If it does not open that try
burn
Alcohol 120%
write method=DAO/SAO
enable buffer underrun technology=on
speed=4x