SOLVED! This came from another Q&A stream, but it worked for me!
Re: No write access to external hard drive with Mac Finder
01-22-2012 03:07 AM
I had the same problem:
I connected the external hard disk (hfs+ not journaled) to my mac, then updated all the disk permissions to read/write to all files on the diskand then it worked when connected to the wdtv via wifi
to do so:
connect the disk to the mac
- right clic (control click) on the disk icon on the desktop
- click Get Info
- unlock the bottom right lock on the info window by typing yr os x credentials (if applicable)
- give all the users (you - staff - everyone) read/write permissions
- then click on the gear icon and select all included elements
that should do it when you reconnect the hd to the wdtv.