Total Newbie - Apologies in Advance

[gnomus]

I'm having some problems copying the library from my Synology to the QNAP.

Via Windows Explorer, I selected and copied all of the relevant folders on my Synology. (I have 4 folders, which I have called: "24-Bit"; "Music"; "Classical Music"; and "Radio Streaming".)

I then navigated to the Music Folder on the QNAP and pasted them. All seemed fine last night and I toodled off to bed.

This morning, however, I found a message saying "File Has Properties That Cannot Be Copied". I am invited to copy the file without those properties. Rather alarmingly the dialogue box tells me that there are over 12,000 files that are similarly afflicted.

After I had dried my tears, I decided to accept Windows offer to copy the files without the un-copy-able "properties". I then had a look at them in mp3Tag, and in Windows Explorer. In mp3Tag the copied file looks identical to the source. I do not appear to have lost any of my metadata.

In the Windows Explorer 'Properties' dialogue, the files also look (almost) identical. File size is the same and track duration is the same. The only thing that I could see that was different was the "Created" property. On the copied file it was set to today's date.

So, I'm not entirely sure whether I can rely on this backup or not. Is there a better way of doing the transfer of files from Synology to QNAP? Should I abandon the current "backup" which still has several hours to go?

I should add that, because I am ripping new CDs every day, I have been backing up to an external HD almost every night. This has always gone smoothly and I have never had the "Properties Cannot Be Copied" message before.