FILCHESCAT  Upon launch it states that an installation of version 7 is required. Then it quits. Version 7 is there. I agree - testing prior to deployment and support for this app on a Mac is sadly lacking. Apparently lost in translation. Can't rate it if it doesn't launch. OS 10.5.8 / Intel MacPro. I always have to revert to version 6.x, which is barely usable.  
(Version 7.1)

PENGUIRL  The previous versions of DSS Player were wretched applications that functioned just barely adequately and had an atrocious UI that was obviously a Windoze port with little effort put into it.

Now they've dropped support for older recorders such as my DS-330. In turn I think I will be dropping my future support for Olympus.  
(Version 7.1)

PRAGMAT  Thanks bosskev for the heads-up on the near uselessness of this release. One is left to wonder about the lapse of mind within those creating a software package requiring almost ten times the space it should reasonably need while neglecting support for some rather pricey related hardware products that were current less than a year ago and are still sold as new by mass-marketers round the globe. It would greatly surprise me to learn that a more usable, better engineered app could not have been written in 9-30 mb that didn't support every DS-player Olympus has made to date. Frankly, it's absurd to think otherwise.

While it is true that Olympus has continued to uphold their good name in the cameras they produce, so far as the Macintosh side of their business is concerned at least, their software has steadily gone from the bemusingly bad to tragically worse. Instead of enabling longtime and long-suffering DS users to move DS access to their ICBMs, Oly' ships this offensively half-thawed mammoth. Something tells me, this following on the equally preposterous recent travesty that was Olympus Master 2, we have yet to reach the nadir of Olympus' ill-considered software design. They seem to be on a roll. Another most disheartening event from a company I have for several decades had only the greatest respect. It causes me shame to watch this decline.

Note that using an app such as Pacifist will allow you to extract some components from this package which will assist you in having some manipulative access to DSS files on PowerPC & x86.

Crumbs.  
(Version 7.0.1)

BOSSKEV  A caution before updating: be aware that the 7.x software does NOT support several older but still commonly used Olympus recorders. From the 7.0.1 ReadMe file:

Note : DSS Player for MAC V7 does not support the following discontinued recorders DS-3000/2000/660/330/320/150/10, DM-1 and the RS-25 foot pedal. While direct recording is supported, Direct Recording in DSS LP mode and WMA fomat are not.

On a test machine, I tried installing the software anyway just to see what would happen, and the 7.x software DID NOT work with either my DS-2200 or DS-2000 recorders, nor did it work with the RS-25 pedal--just like the ReadMe indicated. Very sad as these devices just are not that old.  
(Version 7.0.1)

JIM  I love this unit. I'm a song writer and story teller and it has changed the way I catalog ideas because of SIZE and CONVENIENCE. It fits easily in my pouch with my cell phone, it's always handy, the software is easy to use and I can download quickly. I can convert files to AIF so they're compatible with my DAW software (Digital Performer-Mac OSX). The FIDELITY is good enough to record several instruments and hear clearly the details. It has several handy features, like if you're listening to an entry and want to comment on it, you can record a new entry, then when you go back to the original entry it plays from where you stopped, not the beginning.   
(Version 6.0.4)

CURLY  One of the worst customer service responses I've ever gotten. "Unfortunately, the DSS Player is currently only guaranteed compatible up to OS 10.1.5." Absolutely no comments about updating software for Mac. I had to go back to older version, which at least >works< with 10.3.+  
(Version 1.4.2)

BEELERS  This program is adequate if you use an Olympus recorder, but how hard would it be to put shortcuts for play, stop, skip and cue? These are essential to making this program efficiently usable.  
(Version 1.4.2)