Use a program called Recova to try and get all possible data off the disc, or try a back up program. then using the formatting program off you buffalo disc do a physical format of the disc (it takes a long time). format your disk. (again it takes a long time) If you want to change from fat32 to nfts right click the disk icon ,select properties,format, chose to format in nfts, select quick format. if all ok re-enter your data. it worked for me.
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Use a program called Recova to try and get all possible data off the disc, or try a back up program. then using the formatting program off you buffalo disc do a physical format of the disc (it takes a long time). format your disk. (again it takes a long time) If you want to change from fat32 to nfts right click the disk icon ,select properties,format, chose to format in nfts, select quick format. if all ok re-enter your data. it worked for me.