Lightroom has encountered a problem reading this photo + error  ???

Details
* The exact version of the Adobe Application you are running. Lightroom 1.0
* Your Operating System details: Windows XP Professional Version 2002 Service Pack 2
* Amount of installed RAM: 1 Gig
* Amount of free disk space: 31.9 Gig, 184g (second drive)
* Make/Model of Video Card: Nvidia Quadro FX500/FX600
* Printer Details if you have a print problem: No print problems
* The EXACT text of any Error Messages you saw:
"Lightroom has encountered a problem reading this photo" "You will not be able to make adjustments to this photo" & Error idx ! = 0 && -idx <=->top-L->base
* Precise symptoms of your problem
Attempt to load all RAW files from (Canon 10d & MarkII). First few folders imported are fine, after loading 10 or so folder all the files afterwords have the above error, if I remove all files, and reload in a different order files that were giving the error will load correctly, and files that loaded correctly before now load with errors.
Screen Captures for reference.
http://www.pbase.com/brahm/image/80870830/original
http://www.pbase.com/brahm/image/80870983

Here is a snippet from a discussion on another forum that includes a quote from Jeff Schewe, whom I consider to be a very good source for reliable information:
Look, I'll make it REAL simple...
TIFF = Good
PSD = Bad
PSD is now a bastardized file format that is NOT a good idea to use. Even the Photoshop engineers will tell you that PSD is no longer the Photoshop "native" file format. It has no advantages and many disadvantages over TIFF.
TIFF is publicly documented, PSD is not. That makes TIFF a preferred file format for the long term conservation of digital files.
And, let me be blunt, anybody who thinks PSD is "better" than TIFF is ignorant of the facts. If Adobewould let them, the Photoshop engineers would tell you to quit using PSD.

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