This is my experience with MiniDisc from about 2 years ago. Newer units may have improved things, but from what I've heard, they are still a PITA.
You don't "load" songs from the pc to the player. The printing on some of the Sony MiniDisc players that say they "play mp3" are an outright lie. They do not play mp3. The software on the pc may "play" mp3's, but not the unit. Mp3's are converted to the Sony format (ATRAC). While ATRAC is an excellent sounding encoding algorithm, it is crippled. Crippled by adherance to SDMI.
First off, it's a one-way trip. Songs go on, can't directly transfer them back off. But wait, you say. "Other devices have SDMI". Yes, some do. But with SDMI-crippled mp3 players, you can copy a song quickly onto the player. Dump it easily and copy another. With ATRAC, you have to wait for the conversion process.
Which leads to the Second point, ATRAC was originally designed to encode in real-time. That is, as the music plays, it is encoded (remember recording to tape?). Newer versions can encode faster, they might even do the conversion on the pc, then transfer the file, but it is still slower than being able to transfer a music file directly from one device to another.
Three. The music is encoded onto the disc as one continous stream, with start and stop points (track marks) saved in a TOC (Table Of Contents). When recording with Optical Digital input, the unit senses the gaps between songs and notes it in the TOC as track marks... Usually. Sometimes it misses and you have to fix it manually. If recording with an Analog input, you have to go through the whole disc and add track marks manually. Ugh.
Four. Titles. Sure it has titles. If you want to spend the time to add them. In my case by using the little buttons on the recorder. Time consuming, it was. Though I hear some more advanced units have the capability to get titles somehow from the PC.
Sony had a great idea with the MiniDisc, but blew it with the restrictions placed on it. Too bad.
P.S. I gave the MiniDisc along with a CD changer with optical out to my technically unsavvy sister. She likes it for wearing while delivering mail.
I recently gave my niece a 32mb Rio One. With rebate, $80. Plus another $35 for a 128mb card. Simplistic no titles display, like a CD player, but lightweight and can hold quite a bit of music. Simple drag n' drop from Windows Explorer to load songs.
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-- Terry K --
30Gb Smoke / Toyota 4x4
30Gb Amber / Bounder RV
Pants first, then shoes