[Burn Thread Runtime Exception,Error EinvalidOp]

I download wii games from espalwii, I've just burned 10 games but sometimes, while I'm burning on ImgBurn compares this error :

BURN THREAD RUNTIME EXCEPTION, ERROR EINVALIDOP.

What does it means?

Until now I discarded 4 DVD!!! My God!!

I use Verbatim DVD-R , 4x speed, I have a Vaio laptop with Vista and PIONEER DVD-RW DVR-K17 1.00 (ATA) recording inside.

 

Help me!!!

 

 

Italian.

 

Do you know the problem?

[Burn Thread Runtime Exception,Error EinvalidOp]

I download wii games from espalwii, I've just burned 10 games but sometimes, while I'm burning on ImgBurn compares this error :

BURN THREAD RUNTIME EXCEPTION, ERROR EINVALIDOP.

What does it means?

Until now I discarded 4 DVD!!! My God!!

I use Verbatim DVD-R , 4x speed, I have a Vaio laptop with Vista and PIONEER DVD-RW DVR-K17 1.00 (ATA) recording inside.

 

Help me!!!