SH-S182M w. Verbatim CD-R's



I don’t know why but I just bought two new cd burners which were SH-S182M and i put in a Verbatim CD-R blank disc in the drive to burn, and it only detected up to 32x, not the 48x which the burner should be burning at. My old burners worked fine with Verbatim CD-R’s and were much cheaper. Anybody know what’s wrong here?