Really? Strange, I can swear that I tried it for at least a full day and it failed miserably each time the file was really large. I guess I must have used it wrongly then, possibly I used an example that was not adequate for my needs, but it's too long ago for me to remember the exact details.

Well, thank you and thans to AnonyMonk for the information, I'll look at it again. And... sorry for the disruption with apparently inaccurate information.