I use WINRAR to extract large files on a routine basis. I usually get 40% - 50% files extracted successfully and I was able to open these files afterwards. However, I get the above message when I try to open the rest of extracted files. Why does this happen? I used to delete these so-called long-name files by using 7zip delete function and try to extract the same file by WINRAR once again. This action resulted in a different version of successful vs. unsuccessful files, sometimes, the ratio maybe 40% vs. 60%, or maybe 65 % vs. 35%...... I am just trying to find out the reason of it. Thanks.