let me make sure i understand the logistics behind enabling DMA support in 8.0. according to the release notes (a wealth of cool info, by the way), if you are sure that your CD-ROM drive is capable of IDE DMA, add to /etc/modules.conf the line: options ide-cd dma=1 this raises a number of questions. 1) will this work instead of adding USE_DMA=1 to the appropriate /etc/sysconfig/harddiskhdx file? or is this to be used in addition to? which leads to ... 2) the original solution works (as far as i can tell) only if the ide-cd support is a module. what happens if you recompile the kernel and build it in? is that when you switch over to using /etc/sysconfig/harddiskhdx? 3) it seems clear that, if you have not just a CD-ROM but a CD-RW, you'd add the line options ide-scsi dma=1 instead, yes? have i pretty much covered the possibilities? or have i misunderstood something badly? rday