Connections from PC to WD TV LIVE to Smart TV to play DVDs on hard drives?

So if I understand what you are doing:

You have VOBs on a share on your PC.

You have the WDTV attached to your TV(Smart has nothing to do with it)

You areusing the WDTV mediaplayer to play the files from you PC share

Assuming that’s correct:

  1. Is  your PC wired to the network or using wifi?

  2. Is your WDTV wired to the network or using wifi?

3.  Are you using shares or are you using a DLNA media server app(tversity)?

if 1+2 are wifi then that is likely your problem.

at a minimum your file server should always be wired.

Also if you are using shares you might want to try a DLNA server instead.  Usually this protocol is much more efficient than file shares.

Just as an FYI I am also using a PC share with my WDTV and have no issues even streaming full 20+mbit 1080 mkvs, BUT my setup is 100% wired.