Just a quick hint when you experience corrupted data on your Synology NAS: make sure to use the newest DSM version available.
By “corrupt data”, I mean one or more of the following (rather easy to spot on image files):
- Files of length zero (0 bytes) after copying to the Synology NAS
- Incomplete copies (i.e. JPGs with only half of the image data present)
- Corrupt data formats (i.e. Finder doesn’t show a preview or thumbnail of the file)