Possible CDROM problems with install

[Mike Leman]

I am trying to install Freebsd 4.8 on a computer and having a great deal 
of problems.   The first time I tried the install stopped when the doc 
install was at 100% and would not go on.  I rebooted and it would boot, 
but I didn't have much.  I tried booting from the CD to finish the 
install, but that didn't work.  I would get a screen screen dump that 
just kept scrolling. 

Since I'm putting this on a second hard drive, I wiped everything off 
the drive and started over.  When it was loading the BIN to first 
directory, I noticed I was getting a lot of "/stand/cpio: invalid 
header: checksum error" messages.  Then on the window with progress bar, 
I got a message  "write failure on transfer".  I acknowledged the error 
and received a message asking to try again yes/no.  After retrying and 
failing a number of times, I selected no and the docs installed OK.  
After this every part of the install had the write failure until I 
stopped the install.   On monitoring side, there were invalid header 
errors and other errors also.

In Greg Lehey's book "The Complete FREEBSD", he notes can be problems 
with ATAPI CD-ROMs.  I have a Acer 36X CDROM that reports "ATAPI 36X 
MAXIMUM" when the computer boots.  Could there be problem with the CDROM 
drive?  Is there something I do for this?  Or do I have a bad install 
CD?  I just purchased the intall CDs.  Also the Hard drive in fairly 
new.  I bought it and installed six months ago, but have not used till now.

Any help you can give will be appreciated.

Thanks,
Mike