Gurudev ji, i am knocking your door again for help first of all thanks a ton for this great software with such a detail step-by-step description...if u had remember i had once declared you the 'Sajha hero of the year' and i am still firm in what i have said ok with that note, what i have found out with ImTOO MPEG Encoder that is that it will only encode the file for duration of 5 minutes ....it will stop encoding whatever is after 5 minutes..infact for the file with duration longer than 5 minutes it prompts a message before encoding that "unregistered version has some limitations: the limitation of trial version is to encode only 5 minutes each file" ..and then ask to enter the name and license code (i did try with serial key that you provided us, it doesn't work!) do u have a license code that we can use, i am in a dire need thankss