> > compression ratios (up to -12%) when compressing compressed data
> 
> Trying that now.  With "compress 1" and "dd bs=32k", I got

set compress to ZERO if your files are already compressed
 
> dd: /dev/rst1: Input/output error
> 0+827762 records in
> 0+827761 records out
> 3390502912 bytes transferred in 8035 secs (421966 bytes/sec)
> Connection to tmp closed by remote host.
> 191.787u 91.553s 2:15:34.08 3.4%        0+0k 10+65io 117pf+0w
> 
> 3.3 GB on a 4 GB tape.. sigh.  I guess I'll have to move back to Amanda or
> something.

it's not a solution.