Samsung HT-Q70T System "dvd wont load movie" Questions

...DVD is clean and unscratched. If it wont help and these are commercial DVDs, then there is probably something wrong with them. If they are home made DVDs, then it may be that your player doesn't ...

...dvd surround system that wont stay on.... When i go to turn it on it flashes for a few seconds f 61... I cant play movies or anything. Can u pls help... F61 usually means the amp has detected a short ...