Pal PS2 with NEO4 - Need Swap disk instructions please

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I'm only having a problem with three games, Tiger Woods, Star Wars Bombad Race and Gauntlet Legends. Each of these comes with a seperate ZIP file which contains a Swap Patch for the games. I've tried burning the games without the patch and also with applying the Jap and USA patches but still can't get them to boot on my PAL PS2 with a Neo4. After the first sony logo comes the either the screen just goes black or it comes up asking for a proper PS2 disk. All my other games work fine.

I've heard some games even with a NEO4 need a swap disk trick but I cannot find any decent instructions of how to do it or know if I need to apply either of the patches and if so which one.

Any ideas for these please ?