Sounds like you have some corrupt videos. Convert them to mp4 using Handbrake

most of my videos files is flv i didn't find any software to change the formatted can u help me just give me the name of softwares i can use to change formatted plzz

hey guys i didn't get my sera to serial number just purchase last 2weeks im using sera to dj with denon mc2000 but i need to change the laptop so how du i find my serial number??

Hi Veejay Dullah,

I've sent you an email with your serial number.
Are you still requiring help with your original issue?

Matt P

i got it thanx very much

Veejay Dullah

You are welcome. I'll close this up for now.

Matt P