rekey index file

[rotorspeed]

when i open up one of my divx files with virtualdub the program starts
"recontructing missing index block" then gives message "you have not specified rekeying index block , seeking file may be slow". How do I fix this? I dont see anything under options or other box to do this.

[zedolfblack]

When you use the Open File dialog in Virtual Dub and select a file to open, select the Checkbox 'Popup extended open options'.

You get a window of Import options which includes Re-derive keyframe flags.

Zedolf.