I highly recommend HensTooth Discs,
  http://www.henstoothdiscs.com/Thorens45.htm 

I have purchased several from Jack Perron and am very satisfied.  Be
sure to read the description of the Thorens/Reuge players as Jack makes
reproduction discs that will play properly on specific machine types.
I have bought used discs from reputable dealers that do not play on my
vintage-1950s Thorens.  Jack's discs do play correctly!

Knowles Little