Backup files differ in size...any idea?

[Mike]

Hi,

We tried to backup our newest project, and the QT reference file is smaller than the original files from the Red Drive. Original QT reference file is 64kb and the backup QT reference file is 32kb.

But the backup copies play perfectly with no problem though.
Any idea why the difference in size?

And is there anything that we should be concerned about?

 

[Fredrik Harreschou]

My first guess would be that you have different block sizes on the two drives...

 

[Mike]

Will it have an impact on the footage?
Our R3D files size remain the same though. Only the quick time reference files.

 

[David Didato]

No, I agree with Fredrik. The backup drive's blocks are probably smaller resulting in a different file size. No impact on the data - just how it is stored on that particular drive.

 

[Graeme Nattress]

Yes, for small files, they can't be smaller than the drive block size - and bigger drives have bigger block sizes.

Graeme

 

[Mike]

Thanks. So I guess there is nothing to worry about.
Going to format the Red Drive for the shoot today

 

[I Bloom]

Thanks. So I guess there is nothing to worry about.
Going to format the Red Drive for the shoot today

Mike, you may also notice the calculation in size between R3D files on a RED Drive (Fat32) and a Mac formatted drive (HFS+) is usually off by about a megabyte. This is because of differences in overhead between the two filesystems.

Also nothing to worry about

IBloom