Problem with DVD Architect: m2t file is being read only half the length

[eising]

In Vegas Pro 9, I rendered a 40 minutes video (original AVCHD mts files) to a high quality mp2 video (mpeg-2, 1920x1080, progressive scan, 2-pass VBR, 10mbps avg, 14mbps max. Extension m2t). Great quality.
When importing into DVD Architect 5, it only reads the first 20 minutes, half the length! Other files like avi are read full length, but the m2t file only half the length! In the import window, when putting the mouse over the file, the info balloon says "40 minutes", but the file info on the bottom of the window says "20 minutes". WHY????
I know that I could render using the DVD Architect template, but then I need to render twice, since I want to have a full-quality 1920x1080 video as well!
Please advise.
Wim

[Baldrick]

Try demux the mts with tsmuxer. Then import the separate video and aidio streams in dvd architect and see how it works.