Large block sizes on my SVDL (SVTL) cause backups to fail with Fatal error writing backed up data (4047747)

Following extract from binary log show what we can expect to see when we try to backup to a SVDL with the block size to large:

Job Message 2007/10/12 16:23:29 66 Media HRL (SVDLA) Media in 'DRIVE 4:HRLHQS1' assigned to job ready for data transfer
Background 2007/10/12 16:23:29 66 Media HRLHQS1 Sent Plugin space left estimate of 0 Mb
...
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error writing backed up data
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'Ghana'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'VancoE_Ghana_Cote d'Ivoire'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'Ghana'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'International'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of '2006'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'Acquisitions'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'hrlGroup'
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error processing children of 'E:\'
Warning 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Fatal error backing up selected item 'E:\' or its children
Severe Error 2007/10/12 16:23:29 66 Data Plugin HRLHQS1 Failed while backing up items
Job Message 2007/10/12 16:23:30 66 Data Plugin HRLHQS1 Job completed with warnings/errors
Error 2007/10/12 16:23:30 66 Jobs HRL Fatal error: Backup failed
Error 2007/10/12 16:23:30 66 Jobs HRL Job Status: Backup Failed
Job Message 2007/10/12 16:23:30 66 Jobs HRL Finished job 66, phase 1 (instance 5)
Error 2007/10/12 16:23:30 66 Media HRLHQS1 HRLHQS1 PhysicalDrive4:4: had channel error
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Block size for SVTL tape drives must be configured to a standard power of 2 integer, from 32 to 1024.

Use the following settings for SVDL block sizes and no higher that 1024KB

32 KB
64 KB
128 KB
256 KB
512 KB
1024KB