cannot open file in dvda 4.5

Afenu wrote on 6/7/2010, 8:32 AM
for some reason my vegas movie studio project rendered as a MPG.sfl file -
and it wil not open in DVDA 4.5
when i locate the file on my computer I click ( open in DVDA)
but when I open DVDA and try and open it -
it states the file does not exist

do I need to rerender? - hate to as it diminishes quality -
thanks