No Sound Via HDMI,,, Insure Proper Device Driver...
jb ""THE GUY YOUR MOTHER WARNED YOU ABOUT"", Amazon
14 May 2013
Summary: upon arrival device driver software wasn't up to date, causing the dvd player not to have any sound via hdmi ,,, panasonic tech didn't resolve issue,,, i figured it out on my own thru panasonics' device (s58) web page & notified panasonic to include this info in their support criteria,,, before going thru all the other steps, i recommend this solution first,,, once i installed the proper driver from here-> , the dvd player ran fine,,, be sure to copy driver to cd-r, not...
Summary: I bought this player specifically to play UK-region DVDs (the only thing my PS3 won't do) - and it does the job admirably for the price. Note that you will need to get & install the latest firmware from Panasonic (burn from ISO to CD and 'play' in the unit) - then making it Region Free is a snap. Video quality is as good as you would expect - it has HDMI AND component video out - something that was removed in later models. Very slimline and pretty quiet.
Summary: It was easy to set up, and has a great picture quality. But like some other reviewers, I was unable to get it to play DivX AVI or MPG4 that are listed in the online advertising and in the user's guide. My primary reason for choosing this one was to play multiple format (from the computer) on the television, and secondarily to play back PAL format shows such as the UK's "Trigger Happy" comedy series.
Summary: Bought this player to replace my Philips Up Converter Player. I gave the Philips away because it was slow starting up and had a few glitches in its mode of operation. This model makes the old saying, "You get what you pay for" very true. The Panasonic is much quicker starting up and gives a nicer picture. The bad thing is the front panel lacks many important basic features you need like skip or pause.
Good picture on individual units, engineering oddities
7 January 2011
Summary: The Panasonic S58 can have an very smooth, crisp picture--perhaps especially in component mode. In HDMI-upscaled mode, it is variable among units, sometimes rather cloudy and washed-out despite a lot of adjustments. Additionally, the engineering is full of little oddities.  It doesn't hold its place even on a disc in the machine if you switch it off for a second; it will start from the beginning.