Is there a way to tell whether or not a Wii game uses a single or double layer disc?

My Wii has stopped reading dual layer discs last year, and ever since I've been afraid to buy anything in fear that I won't be able to play it.

I understand that SSBB was the first game to utilize the dual layer disc, so I should be safe with anything released beforehand, but has everything since then been dual layer?

I believe there are only a few dual layer games in the Wii's library.
I forget which, but I think maybe Metroid Prime Trilogy and Xenoblade Chronicles are a couple that are dual layered.
_{Don't quote me on that though.}

It had trouble with SSBB, Other M, and MK Wii (although, other times it wouldn't have a problem), and it has stoped reading DCKR altogether.

It doesn't have a problem with Galaxy (1), and I assume it won't have issues with GCN games, so I could look into the GCN library (I missed out on it originally).

Google says that if the data side of the disc is silver, it's single-layered, and if it's gold, it's dual.

^ Okay then. I'll probably try to look at that if I'm able when buying a game, and look more into GCN games.

Good news. The GCN system in the Wii is separate, so a bad laser shouldn't affect it

Sakura Wars, Other M, Metroid Trilogy, SSB Brawl and Xenoblade are the ones i remember.

Are you sure about Sakura Wars? It was also released on PS2, so I'd find it hard to believe it would need a dual layer disc on Wii (unless there's a ton of extra content in it, which I doubt).

http://nisamerica.com/forum/viewtopic.php?f=7&t=1145
@RR529 Yes, it's dual layer. And yes, I'm as surprised as you are.

A lot of these games are dual-layer. Read their descriptions ...

PS2 had some dual-layer games as well. (though the only one I'm immediately aware of is Xenosaga 1)

I'm not sure about this, but is Zelda Skyward Sword dual layer?