Syncplay keeps your media players in sync
Pausing, unpausing and seeking are synchronized over the Internet, giving everyone playing the same file in the same virtual room a shared viewing experience. Use alongside VoIP software, e.g. Mumble or Skype.

“3..2..1.. Play! …No wait, pause! …No wait, argh!” — What people had to shout before Syncplay.

For best compatibility use Syncplay with mpv media player on Windows, Linux or *BSD.

Where can I get Syncplay 1.5.1 ?

Get Syncplay (Windows) Get Syncplay (Linux) Get Syncplay (OS X)

Source code: https://github.com/Syncplay/syncplay

See http://syncplay.pl/syncplay-1-5-1/ for details on this release (e.g. md5, SHA-1 and SHA-256 digests).

Note: This open source software has been marked as clean by Jotti (.exe, .dmg, .zip) and VirusTotal (.dmg, .zip). Syncplay might be flagged as suspicious by some anti-malware systems simply because it is unsigned software downloaded from the Internet that is not widely used. If you’re concerned by this then just run the Syncplay source code directly as it is open source software. 

How can I report bugs?

…But first check out the Support section to see if the problem can be resolved.