Philips DVD625 DVD Player "finding area circle" Questions

area. So I decided to replace those too. I did one thing better while I had the thing apart. I upgraded the 120gb hard drive to a 320gb drive while IDE drives are still available cheaply. I used my PC

...circle you can insert a paper clip into and manually pull out the tray but I do not see such a feature on this machine. Please help. I just fixed one of this exact model SD-V392SU with same problem. ...

...circle, inside a square. It says the number must correspond to one on the DVD but where can I find the number on the DVD to compare. Do you think this is my problem? DVD video discs may be encoded ...