Help !!! Confused about a movie.....

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Hi guys, it will look like a stupid doubt but its really troubling me the last two days. i watched a lot of hindi movies during this month...daily one or two .now after all this when i sat down to study for my exams i am able to remember a comedy in a movie it is like...dad telling about his son ...that the son has lost lot of dad's money ...example ...the son released a audio cassette and only 2 cassettes sold .the dad says that one cassette he bought and after using it,it broke so he went and bought another.....thats it....i dont know ..there is nothing special about this comedy but my mind is not able to free this memory.i am not able to concentrate..i have tried to recollect all the movies i have seen but i cant ...so please help me...any doubt in the above ie.if u dont understand any line please message me ok .....thanks advance..