i had used a sony mzr3 for quite some time,and had not one problem with movement during recording nor toc errors on discs.it is also much easier to buy mds often and have removeable media then to have a digital recorder totally crash and end up losing everything on it. i just purchased a new sony hi-md,but it has not seen action yet.the interesting thing is the new mdr has a built in digital equalizer,which for me is very useful as run my recordings straight out of the md into a sony rcdw500 c cd recorder,which burns eq'd versions of my masters.very cool stuff