Unable to install freebsd on HP Proliant ML30 server

[Damon Blom]

CPU: Intel (R) Xeon (TM) cpu 2.40 gz (2399.93 mhz, 686-class cpu)
  Features =
    Logical CPU's per core:2
    real memory 2047mb
   avail memory 1992mb
MPTable : <COMPAQ PROLIANT>
FreeBSD/SMP: Multiprocessor System
        detected: 2 cpu's
  cpu0 (BSP):APIC ID:0
  cpu1(AP):APICID:6
acd0:CDROM<COMPAQ SC-140c/cq04> at ata0-master UDMA33
da1:<COMPAQ BD03664553 3B08 fixed direct access SCSI-2 device

da1s1  34726 mb
fsck on exsiting file system
2 files 2 used
copying boot floppy to /stand on root filesystem
   /mnt/stand
                    /etc
    ...
cpio /mnt/stand/boot-crunch linked to /mnt/stand/hostname
 4862 blocks
DEBUG generating /etc/fstab file
g-vfs-done():acd0[READ (offset=32768,length=2048)] error=5
error mounting /dev/acd0 on /dist
   input-output error (5)
 unable to initialize selected media

I have tried various i386 releases :5.3,6.1,6.2.7.0. 8.0 current iso 
disk1 install disks
Installation proceeds normally, newfs done and then just stops when 
files are to be created
I have tried google but unable to find problem.
thank you for your time.
     Damon