Picky console only reads certain types of burns?

[koraichu]

I'm unfortunately still having trouble getting burned CDs to work in my DC, but now I'm returning with the power of research!!

So, to get specific:
The console is a Model 1. It is capable of reading factory GD-roms, Music CDs, and burned homebrew built from plainfiles so I know the drive is operational. It is 99% unable to run anything burned from a .CDI file not built myself from plainfiles (the one exception was a random file of SA1 Limited Edition). I've been trying for the past few hours to get the game Volgarr The Viking to work as it I saw it being recommended for testing with no luck (I made sure to use the dummied version). I've tried with many different burning speeds, two different drives, and tried with both IMGBurn and Discjuggler. The two others I've done most of my testing and failing with are Sonic Adventure 1 (regular version, not limited) and Half-Life.

Extra info:
When I try running a game that doesn't work, it makes this sound. As per my last post, trying to run the burned discs in-emulator from the 1ST_READ.BIN crashes the program even though booting the original .CDI files in the emulator works fine.

I hope this is enough information for a more experienced community member to point out what I might be doing wrong; I can't think of anything else.