As you may have seen, I reviewed one of the previous models of the standard MiniDisc that was the first generation. After being extremely impressed with the amazing sound quality, I had to opt for the Hi-MD model so I could record AND transfer my recordings via the original file on my PC, to which I can safely say this is simple and so effective on these range of Hi-MD models.
The other reviewers have probably covered everything you need to know, but their is an unfortunate problem in the long term... Disc Read Errors... Just like the original 'Playstation' from 1994, this device suffers an all too familiar internal warping around the laser head, because their is nothing keeping it cool. This is because the Hi-MD spins at a much faster RPM than standard MD, hence my original (2002) Minidisc still works, while this doesn't!
It would be harsh to call it a design fault, after all this model was released in 2004, and Sony probably never expected them to live for 4 years. However, they are becoming rarer and rarer, and it's a pity that such a high quality product fails to live longer. You may at first believe it to be a dust/dirt problem, but even I can see the laser head head has shifted so slighty out of alignment.
Sonic Stage 4.3, the last version of the 'infamous', shall we say, software, is thankfully bug-free and works a treat. If this player only comes with v4.0, I highly suggest going to Sony's Website and getting 4.3.
Their is no doubt the Hi-MD is superior to any Apple iPod or mp3 player out there, but if you're buying one 'second hand', I "highly" suggest you check how much it's been used, and how old it is. You've been warned!