Hi, Sorry for the OT; I know this subject has been beaten to the bone but... I took advantage of the mid-winter lull to experiment with my audio ATA drive (Quantum KA 13.6 gig) formatted in FAT32 (4k clusters). It was working fine, with minimal operating overhead as per Logic's Performance meters (barely reading). But I recently strongly recommended to use FAT16, as it uses a larger cluster size: less seeking for the HD heads is supposed to increase reading efficiency and extend the drive's lifespan. Many PC-for-Audio sites recommend this. I tried converting 1 partition using PartitionMagic to FAT32: that was disatrous (got or had a bad sector). I backed up everything, repartitioned and reformated in FAT16 using FDisk (large disk support OFF): from 2 - 6.x Gig Partitions to 7 partitions (2 Gig limit/partition in FAT16). But now, according to Logic Performance meters, with the same songs playing, the disk usage overhead seems to have increased by at least 500%!! And this is from the fastest of these FAT16 partitions. FYI, my system is a Celeron 450/128 Megs under Win98; DMA on (BIOS reports Ultra DMA 33), Write-behind is off, Cache is fixed, Virtual mem is fixed, Double-Buffer = 0, etc.. Oddly, HDTach read tests do show that my Quantum ATA still outperforms my Maxtor System drive. It also shows only 3.9 % processor time usage. But it seems I'm getting lower performance instead of better. I'm confused. Does anyone know why? Stephen PS for Logic Users: Please forward any info to me personally; I don't receive the Onelist posts in my mailbox.