Hi All, I'm new here at this forum, so maybe the answer on my question is already here on this forum. I have a computer with OS WIN98SE and a HDD of 6GB as primary partition. My MoBo is NOT supporting 48bit LBA and supports only HDD <33GB. I now have installed a 500GB PATA HDD and connected it to a UltraPCI card. Sofar everything seems OK and my computer recognozes the full 500GB. I want to partition and format my new disk with the FDISK and FORMAT that came with WIN98SE, but I am not sure wether these programs support 48bit LBA. As far as I understand these programs will work on a 48bit LBA disk but do not the display the sizes correctly. Will they partition and format my disk properly, so my data will not be damaged beyond the 137GB barrier? I also have a copy of PowerQuest PartitionMagic v8 installed on my computer. Do you know if PartitionMagic will support 48bit LBA. I am aware that the Programs SCANDISK and DEFRAG will not support 48bit LBA, so I have disabled them. Thanks for your help!