Hardware 2 questions regarding HoTD Overkill

[Satangel]

I've downloaded HoTD Overkill NTSC-U and forced it to PAL with Wii Utilities. I also removed the update within.
I'm running it with Gecko OS Pal Wii 3.2E.
It works perfectly, but I've played it for 3 hours or so, and in those 3 hours it got stuck twice.
What can I do about that?
If I would burn it faster/slower, would that help?
It's burned on a Philips DVD-R at 4x and IMGBurn verified it.

Another question, how do I throw grenades?

 

[SirTempest]

that sounds like a bad burn or a bad download/dump too me. just try to reburn it onto a verbatim dvd-r. if that doesn't solve your problem, you should try do download it from an other source

 

[Satangel]

Anyone got another opinion?
Or some way to throw the grenades?

 

[williegomezt]

to throw the granades you need to have the nunchunk connected.

 

[Armadillo]

No you don't. The - button on the wiimote throws them as well.

 

[dudenator]

I got one exactly the same as that possibly the same torrent.
Exact same thing happens to me where all the zombies are gone and he wont move but you can move the cursor
i think it might be the iso.