Of Vids.part2.rar Link

: If the extraction fails with a "Checksum Error," it usually means part2 was modified or didn't download completely.

: Use a service like VirusTotal before attempting to extract.

In digital archiving, part1 contains the "header" (the table of contents for what is inside), while part2 and beyond are strictly data blocks. If part2 is missing or corrupted, the entire extraction fails because the "bridge" of data is broken. Safety First