Specific TGC files won't execute but will as converted ISOs

What steps will reproduce the problem?
1. Select demo
2. Black screen

What is the expected output? What do you see instead?
It's supposed to load but doesn't do anything.

What revision of Nintendont are you using? On what system Wii/Wii U?
v1.126 Wii

Please provide any additional information below.
Only two titles so far are affected:
Interactive Multi-Game Demo Disc 16 and Naruto Collection.

Those two discs contain GBA demos which are quite small (maybe that's the 
issue?) around 10MB
Rebuilding the TGC, changing game slots, caching, etc don't make a difference. 
As stated in the summary converted as ISO makes it work fine.

Tested with 1:1 and optimized 32k.

Original issue reported on code.google.com by DiegoisB...@gmail.com on 12 Jul 2014 at 5:49

FirstPeanut / nintendon-t

Specific TGC files won't execute but will as converted ISOs #39