problem unpacking the ECE

[Pollywog]

When I unpack the ECE, I get this:


ut2004-ECEBonusPack/Manual/Manual.pdf
ut2004-ECEBonusPack/Manual/Unreal_CH_3_Excerpt.pdf
ut2004-ECEBonusPack/Maps/
ut2004-ECEBonusPack/Maps/ONS-Adara.ut2
ut2004-ECEBonusPack/Maps/ONS-IslandHop.ut2
ut2004-ECEBonusPack/Maps/ONS-Tricky.ut2
ut2004-ECEBonusPack/Maps/ONS-Urban.ut2
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: ut2004-ECEBonusPack.tar: Cannot read: Input/output error
tar: Too many errors, quitting
tar: Error is not recoverable: exiting now

I checked the md5sum for the file before I ran bunzip2 and it was correct.
Could the problem be the tar utility or is it something else?

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