Catalogue jobs failed - data inconsistent on each tape?? V-79-57344-33994

Hello,

i haveto restore an old backup (created with backup exec 10 i guess). For this restore i use Backup Exec 2010 R3 on Server 2008 R2. There are no entries for this backup in the catalog. So i loaded all tapes for this backup (20x LTO4 containing one backup) in my 24-Slot loader and inventorized them. After that i created catalogue jobs for each tape, starting with the first one. After 2 hours and about 800gb data the job on tape 1 failed with the error (translated): V-79-57344-33994 - Data read from media is not consistent. All other tapes failed with the same error.

I can browse the data of the first tape and restore some of the items (others have a red cross). All other tapes are not in the catalogue, so i cant browse them.

What i tried:
* cleaning drive
* checking statistic data for all tapes (0 errors)
* Under BE Options > catalogue > disabled request all media in a row (translated)
* enabled debugging

May the first tape be broken? Is there a possibility to check the contents of all other tapes? I'm doing something wrong?

Thanks for your help
Andreas

Debugging log for a catalogue job:
[...] skipped loading tape
[0984] 11/19/13 12:22:37 [tpfmt] - Current media tape header was written by "NetVault Domain".
[0984] 11/19/13 12:22:37 [tpfmt] - OSF: Got tape one during slow cat. Continuing = false.
[0984] 11/19/13 12:22:37 [tpfmt] - TpRead( ):
[0984] 11/19/13 12:22:37 [tpfmt] - Error = 0 Req = 65536 Got = 65536
[0984] 11/19/13 12:22:37 [tpfmt] - ReadThisSet( cur_fmt=0 )
[0984] 11/19/13 12:22:37 [tpfmt] - Set 1 was written by version 1.0.
[0984] 11/19/13 12:22:37 [tpfmt] - F40_MoveNextDBLK: Proceed -- Assuming this is a DBLK header, but we were expecting a stream.
[0984] 11/19/13 12:22:37 [tpfmt] - Recalculation of LBAs disabled for slow catalog of set.
[0984] 11/19/13 12:22:37 [tpfmt] - OSF: Found first or lowest known set. runningBSnum = 1. bset num = 1. Continuing = false.
[0984] 11/19/13 12:22:37 [tpfmt] - ReadThisSet() return=0x00000000
[0984] 11/19/13 12:22:37 [tpfmt] - Current VCB: ID = 4cdbeb8b Seq = 1 Set = 1
[0984] 11/19/13 12:22:37 [tpfmt] - PositionAtSet( ): TF Msg = b
[0984] 11/19/13 12:22:37 [tpfmt] - UI Msg = 8002
[0984] 11/19/13 12:22:37 [tpfmt] - HARDWARE COMPRESSION ===> Compression is configurable.
[0984] 11/19/13 12:22:37 [tpfmt] - HARDWARE ENCRYPTION ===> Encryption is supported.
[0984] 11/19/13 12:22:37 [tpfmt] - GET_DRV_INF: bsize = 32768
[0984] 11/19/13 12:22:37 [tpfmt] - GET_DRV_INF: preferredBlockSize = 65536
[0984] 11/19/13 12:22:37 [tpfmt] - End of TF_OpenSet: Ret_val = 0x00000000 Buffs = 10 HiWater = 0
[0984] 11/19/13 12:22:37 [tpfmt] - TF read xfer time = 0 seconds.
[0984] 11/19/13 12:22:37 [tpfmt] - AbortRead( )
[0984] 11/19/13 12:22:37 [tpfmt] - TF_CloseSet
[0984] 11/19/13 12:22:37 [tpfmt] - TF_OpenSet( )
[0984] 11/19/13 12:22:37 [tpfmt] - Requested Set: ID = 4cdbeb8b Seq = 1 Set = 2
[0984] 11/19/13 12:22:37 [tpfmt] - Current VCB: ID = 4cdbeb8b Seq = 1 Set = 1
[0984] 11/19/13 12:22:37 [tpfmt] - GotoBckUpSet( desired=2, this=1 )
[0984] 11/19/13 12:22:37 [tpfmt] - state 0, 1 sets to go
[0984] 11/19/13 12:22:37 [tpfmt] - state 1, 1 sets to go
[0984] 11/19/13 12:22:37 [tpfmt] - MoveNextSet( cur_fmt=0 )
[0984] 11/19/13 12:22:37 [tpfmt] - MoveFileMarks( 1 )
[0984] 11/19/13 12:22:37 [tpfmt] - TpReadEndSet( ):
[0744] 11/19/13 12:22:38 [server] - Updating status for: 'Katalogisieren 00031' (0x8 0x0)
[0744] 11/19/13 12:22:38 [server] - Status for: 'Katalogisieren 00031' updated
[0984] 11/19/13 12:23:16 [tpfmt] - MoveFileMarks( ) return=0x00000000
[0984] 11/19/13 12:23:16 [tpfmt] - MoveNextSet() return=0xE00084CA
[0984] 11/19/13 12:23:16 [tpfmt] - GotoBckUpSet( ) return=0xE00084CA
[0984] 11/19/13 12:23:16 [tpfmt] - FreeFormatEnv( cur_fmt=0 )
[0984] 11/19/13 12:23:16 [tpfmt] - End of TF_OpenSet: Ret_val = 0xE00084CA Buffs = 10 HiWater = 0
[0984] 11/19/13 12:23:16 [tpfmt] - TF_CloseSet
[0984] 11/19/13 12:23:16 [tpfmt] - Error detected
[0984] 11/19/13 12:23:16 [tpfmt] - FreeFormatEnv( cur_fmt=65535 )
[0984] 11/19/13 12:23:16 [tpfmt] - Setting rewind flag to true for older device. This will likely degrade the performance of the current job.
[...] skipped unloading tape