[CentOS] reading old dump backups from 2009

Sat Nov 3 02:03:02 UTC 2018
Nataraj <incoming-centos at rjl.com>

I have and old dump format backup done under fedora 7 which is stored on 
disk and has an sha256sum file that indicates there are no data errors 
in the backup file.  When I try to read the file with restore under 
CentOS 6,  I get the following error:

cat /etc/redhat-release
CentOS release 6.10 (Final)

restore tvf u1_l0_04-29-09_md1.dump Verify tape and initialize maps
Input is from a local file/pipe
Checksum error 20311110402, inode 0 file (null)
restore: Tape is not a dump tape

I have another copy of the backup on another disk with the same checksum 
and it gets the same error as well.

Here's a log file from when the backup was done back in 2009:

DUMP: Date of this level 0 dump: Wed Apr 29 09:24:36 2009
   DUMP: Dumping /dev/md1 (/u1) to u1_l0_04-29-09_md1.dump
   DUMP: Label: /u1
   DUMP: Writing 10 Kilobyte records
   DUMP: Compressing output at compression level 2 (bzlib)
   DUMP: mapping (Pass I) [regular files]
   DUMP: mapping (Pass II) [directories]
   DUMP: estimated 95176885 blocks.
   DUMP: writing QFA positions to u1_l0_04-29-09_md1.qindex
   DUMP: Volume 1 started with block 1 at: Wed Apr 29 09:25:05 2009
   DUMP: dumping (Pass III) [directories]
   DUMP: dumping (Pass IV) [regular files]
   DUMP: 0.96% done at 3032 kB/s, finished in 8:38
       .

       .

       .

  DUMP: 100.00% done at 4075 kB/s, finished in 0:00
   DUMP: Closing u1_l0_04-29-09_md1.dump
   DUMP: Volume 1 completed at: Wed Apr 29 16:00:09 2009
   DUMP: Volume 1 took 6:35:04
   DUMP: Volume 1 transfer rate: 2146 kB/s
   DUMP: Volume 1 96607840kB uncompressed, 50878096kB compressed, 1.899:1
   DUMP: 96607840 blocks (94343.59MB) on 1 volume(s)
   DUMP: finished in 23704 seconds, throughput 4075 kBytes/sec
   DUMP: Date of this level 0 dump: Wed Apr 29 09:24:36 2009
   DUMP: Date this dump completed:  Wed Apr 29 16:00:09 2009
   DUMP: Average transfer rate: 2146 kB/s
   DUMP: Wrote 96607840kB uncompressed, 50878096kB compressed, 1.899:1
   DUMP: DUMP IS DONE


Have there been any changes to the format of dump files and if so, is 
there a version available that can read this older backup? Any other 
suggestions on how to read this backup would be helpful.


Thank You,

Nataraj