Hello My files are big I guess (80k pics, 1500 folders) As the backup and the restore each take about 5 hours on HDs, I thought SSDs would be faster, but they didn't really. And also I don't think that SSD or HD's are the matter. For me it didn't work using a HD, and it didn't either with a SSD. Actually, when I create the catalog by BackUp-Restore on the HD on the PC1, it works on PC1. SO PC1 can work with the catalog on an external HD. When I plug in this same HD on PC2, it works also, (provided that you change the letter and keep the same as on PC1). I find all my medias and tags created on PC1. I can modify, add new pics on PC2, it all works. But when I plug then the HD on PC2 : Error! and he can't open the catalog anymore... My question now is: Are you able to use one HD only for two PCs, going from one to another? Are there any members of this forum who could reproduce that? I have followed exactly your instructions and I could'nt succeed... I really don't know what to do now to be honnest??? Thank you for the help. Daniel
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