Error compressing FGDB

[ChrisSnyder]

In v9.3 I have loaded a large amount of contour data into a FGDB and would like to compress it (it's already been compacted) to get the file size down. About a minute into it, I get the error:

Unknown compression error on field 'Shape'
File: .\sources\GpSdcDataCompressor.cpp, line: 1734
Failed to execute (CompressFileGeodatabaseData).

I have found another reference to this error here: http://forums.esri.com/Thread.asp?c=93&f=985&t=287940

Curiously this fellow was also trying to compress a FGDB with contour lines. Hmmm.....

Anyone have any experience with this error???