MP4 file size problem

[oluv]

i encoded a 4-hour movie to nero digital mp4 avc. as i wanted best possible quality i selected fit to 4,7gb dvd so the resulting file is over 4gb huge.
now as soon as i try to open the directory with the mp4-file windows explorer freezes and remains at 100% processor usage. i cannot access the file neither can i delete it, when i try to rename it, it tells me that it is locked from another process. but i can rename, copy and delete it from the command line, still windows explorer seems to have problems with other directories where this file is saved.
unfortunately i cannot even burn it with nero, because itq
i already encoded such a long film once and it didn't cause any problems, therefore i am wondering why this is happening now.

funny thing is, when i try to open the file on my other computer through w-lan it opens without any problems, i can even watch it, but i cannot burn it here, because my dvd-burner burns errors quite often :(

both computers are formatted with NTFS. i have no idea what is happening.

[dinolib]

It's a known problem with explorer. It try to get infos on the movie, but - I don't know why - sometimes it freeze in a loop (or very long operation).
To solve the problem you have to:
- register another decoder for nero (I don't know if ffdshow+matroskaplitter combination works in your case)
or
- disable preview funcionality in winXp (register twiking). I'm sorry but atm I can't find the link, if you want I can send you the .reg files (dinolib-at-libero.it)

If you need urgent acces to your file (move or delete) you can create another empty file and select both movie and empty file. Explorer shold stop the attempt to build a preview.

[charleski]

Nero adds its own extra icon and properties handlers for .mp4 files - this is how files encoded with the nero profiles show up with a special icon and have extra info in their Windows properties. This will be what's causing explorer to trip up: some of the info the handlers need to read is right at the end of the file, so it sits there scanning through a 4+Gb file...

[oluv]

thanks to both of you! i finally managed to fix it. i deleted mp4 extension from my known files-list and could finally rename and burn the file.

[foxyshadis]

If you don't want to go quite to the point of wiping out the association, you can also use regedit to delete the HKCR\<extension>\shellex\PropertyHandler key. This will fix the same problem for AVI/WMA files too, and a lot of other filetypes that get 'hooked' by some buggy program. (Standard warnings about messing with your registry apply.)