.... et al. wrote:

Hugh Candlin wrote:

glee wrote:

I don't know why it takes so long to see the properties of a large
file....I see the
same behaviour here, and yes, it is aggravating. :-)



I just tried it on 2 files, one 86 MB, the other 110 MB.

The response was instantaneous. No delay at all.....

Did you try it on different file types, or just MPEG files?

I don't have an MPEG file on my computer, so I couldn't try that file
type


It does differ depending on file-type.

For me big .avi's take a long time.

Interestingly the .mpg propertypage come up instantaneously, while .mpeg
takes a long time.

Looking in the registry under HKCR, .mpg and .mpeg are almost identical.
And the next level, what (Default) points to, (BSPlayerFile.MPG &
BSPlayerFile.MPEG) are again almost identical so the explanation lies
somewhere deeper then this cursory look.


Hugh, you may not need to have a proper MPEG-encoded file to test
this. Just temporarily rename the fileextension of a big file.

But!

I had noted this before and thought it had to do with how certain
filetypes were registered as 'video' in the registry and somehow
got treated differently. But i seldom call up the property-page
of data-files so i hadn't bothered much about the underlying
explanation.
But now i made copies of a big (141 MB) file in a folder and gave
them different name-extensions {mpg,mpeg,avi,txt,bin,rwq} and
tested. Doing one file after another, rebooting before a
particular file, Closing&Reopen the folder before testing a file
.... and now i just can't get a handle on the behaviour ..
sometimes the page comes up quick sometimes it takes ca 7
seconds... (and there is no differences between .mpg & .mpeg files).

Conclusion: I'm confused :-(

(The .rwq was just a random extension not in the registry)

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