Upgrade CD player or wait

This is a simple yet I feel the best way to decide. Listen to both these units, preferably in your home & let your ears make the choice. Next best is listen at the dealers or with somebody else's system. If these are not options, you will get plenty of advise on this forum as what to get.

If you have a substantial collection of CD's & play them a lot I would upgrade the CD player & not even worry about the other formats for now. Also, the price of CD's just went down so this is a great time to add to your CD collection.

If you have a substantial amount invested in CD's it makes sense to upgrade to a good CD player. Chances are, even if one of the new formats catches on, still an iffy proposition, you won't repurchase every title you own on CD in the new format, particularly if software prices are higher. A good redbook CD player will make good music for you for years to come. Both of the players you mention have great reps, I can only speak to the Rega, which is a very musical and warm sounding player with pretty good resolution. I'm sure the Theta is a good player too, and perhaps others can comment on it.
Happy Listening!

What's the rest of your system? I agree with comment above re its stll an iffy proposition re DVD/SACD. For all the hype the industry has given they remain really flawed at this time.

I remain,