Play back problem on dvd player

Hi,

I am very confused when I burned my dvd using shrink and nero and when I played it on my dvd player it shown a lot of square boxes and pause in the middle of the show.
I dont know what is happening.
Could someone kind enough to provide me with a solution??

What does that mean??

My dvd player is samgsung E-1388.

My media is dvd vertabram.

I have already set my pc (aspi) to dma instead of pio.

My pc spec is hd 120gb winxp 512ram p4 3ghz.

I would very much appreciate if anyone out there can provide me with a solution as soon as possible.

Thanks.