Request for help figuring out RLE compression

[TGE]

So basically I have this ps2 game that uses a form of RLE compression (seems likely)
I've got both a compressed and an uncompressed version of the same file if that helps.
Each compressed file starts with a small header.

Code:

UInt32 id;
UInt32 size;
char[4] tag;
UInt32 uSize; //uncompressed size

After that the RLE compression starts, though I'm not too familiar with them myself I can tell that the second byte is the amount of bytes to read.

Samples:

  BU00A.zip (Size: 563.97 KB / Downloads: 201)