Hi everyone,

I also have problems rendering any of the Video RT, similar to some post here reporting the same issue.
I have the 505 update rev, Quick Time most recent version, the problem is present in windows xp (sp3) and the same in Windows 7 SP1.
After an audio convertion error, the audio is apparently re-rendered using an alternate method, after that the video rendering is frozen in "Rendering video 1 of 1" status forever.

Band in a box yellow boxes report:
"Rendering audio..." Audio Conversion Error: Media Foundation falied to m4a. Trying alternate conversion method... The error numbre is -1
- Converting file: [path]_Render_DragDrop_0.WAV
- File is successfuly rendered for drag and drop
- Rendering video 1 of 1

I traced the disk activity during the rendering proccess with a file monitor, which did report this:
- QUERY INFORMATION C:\BIAB_mySongs\Guitar[V] video.mp4 = NOT FOUND / Attributes: Error
- QUERY INFORMATION C:\Band in a Box\Data\VJT\OutProgress_100.txt = SUCCESS / Attributes: A
- QUERY INFORMATION C:\Band in a Box\Data\VJT\sourceVid3.mp4 = NOT FOUND / Attributes: Error
- QUERY INFORMATION C:\BIAB_mySongs\Guitar[V] video.mp4 = NOT FOUND / Attributes: Error
- QUERY INFORMATION C:\Band in a Box\Data\VJT\OutProgress_100.txt = SUCCESS / Attributes: A
- QUERY INFORMATION C:\Band in a Box\Data\VJT\sourceVid3.mp4 = NOT FOUND / Attributes: Error
- QUERY INFORMATION C:\BIAB_mySongs\Guitar[V] video.mp4 = NOT FOUND / Attributes: Error
- QUERY INFORMATION C:\Band in a Box\Data\VJT\OutProgress_100.txt = SUCCESS / Attributes: A
- QUERY INFORMATION C:\Band in a Box\Data\VJT\sourceVid3.mp4 = NOT FOUND / Attributes: Error
and so on in a endless loop...

What is wrong or what I am missing? need help. Thanks.