reading an AIX cpio tape on RH8

Thanks for any insights you might have...

I have a RH8 system setup with a DAT drive.
I have a AIX tape that was made using cpio.

Bottom line is I need to read the AIX tape into the RH box.

I was able to do cpio -itv --no-absolute-filenames < /dev/st0 and read the table of contents.

If I try cpio -icvdu[s b S] --no-absolute-filenames < /dev/st0,
only one of the s b S at a time. I get warnings.....

cpio: warning: skipped 50404580 Bytes of junk
cpio: memory exhausted

I should be able to read this AIX tape and have cpio do the
required byte swap.

I would really appreciate any help you can give me.

thanks.

Mike