EBiggerThanUncompressed Error

[Doug]

I never got this error with version 3.03, but I'm getting it with 3.04 Build 1 (Delphi 7) when using UnZipToStreamByIndex() to a TFileStream (this doesn't happen when using a TMemoryStream -- fyi, however due to the size of the files I must use a TFileStream). I have EncryptBeforeCompress set to True. Even after re-compressing the files using 3.04 Build 1, the problem persists. Unfortunately, due to files out in the field, the EncryptBeforeCompress setting must remain set (although I'm not sure whether it works with EncryptBeforeCompress set to False anyway).

Any thoughts on how to fix this?

Thanks,
Doug

[Doug]

FYI, the version I was using that was working was Version 2.23.

Thanks,
Doug

[Kevin]

1) Does it happen with ALL files compressed with EncryptBeforeCompress set to True or just some of them?

2) Does the size of the file matter? Does it only happen with larger size files? If only larger ones, about what size are they?

3) It is interesting that it only happens with TFileStreams and not TMemoryStreams. Does it happen if you don't use UnZipToStreamByIndex and just use UnZip instead?

Thanks,

Kevin

[kkchoon]

I have the same problem, my file is more than 4 GB, please help.

I backup from another computer which have a different unit size on disk (such as 2k, 4k, 8k, 16k...)

and restore on my notebook, I think this might be the problem as I try to restore it on the same computer with no problem !!!!

[Kevin]

This should be fixed in version 3.05 see the Announcements and Messages Forum for download specifics.

Kevin

[kkchoon]

Still occuring in my backup, can restore in same computer, but port to other computer, can't.

My version is 3.06 build 1/2.

[Kevin]

kkchoon,

What version of Delphi are you using?

Kevin