Need Help!! Booting CD-DA on October 2000 dreamcast

[robbieoyler]

Can anyone tell me how to boot a cd-da game (i think its cd-da) on on october 2000 dreamcast? Just burning the CDI's doesn't work for me but I have used the echelon method(extracting the cdi - making an iso - using bin2boot) on nfl2k2 and nba2k2 and it worked great!

Now i have ready2rumble2 and tennis2k2 and it won't work. The extract differently than the others did and i think that is cd-da format. There is no IP.BIN only root files are:

Zero.dat
Boxing.rat(500+ meg file)
audio64.drv1st_read.bin
0gdtex.pvr

Any Ideas???

Thank You