Minidisc, definitely!Notice that the MZ-R35 of Sony is an outgoing model (if not outgone already, at least here in Finland not available any more), one newer (and even smaller) equivalent being MZ-R70. I hear no difference in sound quality between those two, so if you'd come across an R35 (the operating buttons on both are far too tiny for fingers even as slim as mine, anyway:) there's no reason not to buy it, methinks.
If one wants to transfer the recordings onto pc, the (only?) drawback is that there are no computer-compatible MD-drives on the market (at least so they told me when I asked). Much of the advantage of the MD-recordings being digital fades away, unless one does not have a digital out table-top (portables tend to have dig. in only) MD-player + digital in soundcard on the pc. Mind you, some ordinary soundcards make quite noisy A/D conversion that will ruin the nearly CD-quality MD-recording, when 're-digitized' onto pc through analog connection.
AKS