Previewing them doesn't affect the d/load. It's a good idea to preview files cause as you noted, some get mislabeled.

The file size that's shown in the d/load window, is the size of the complete file. The percentage shown is the percent of the file that has been d/loaded so far. When you restart a d/load of an incomplete file the full percentage won't show until the file actually starts to d/load again. Maybe that's what your seeing(not sure).

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