From Motorola Video Converter Team:
MKV to MP4 Converter Express is an all-in-one MKV Converter. It can convert MKV to MP4 format to use on your iPod, PSP, Apple TV or countless other portable devices. Key features: Convert MKV to Apple iPod Video; Convert MKV to Sony PSP; Convert MKV to Microsoft Zune; Convert MKV to MP4 format that can be played on general portable video device, such as Archos, iRiver, or Creative Zen Vision, or other MP4 player; Converting in batches, convert multiple files at one time; Easy to use - Just two clicks, everyone can become the master of MKV to MP4 Converter; Automatically shutdown the computer after conversion; High speed - A two hours long movie can be convert into a MP4 movie with high quality within one hours; Many settings are adjustable, such as video size, bit rate, frame rate, so that the output MP4 video wil match most portable media player, such as Archos, iRiver, Creative Zen Vision.
What's new in this version:
Version 3.0.1 may include unspecified updates, enhancements, or bug fixes.
It came absolutely loaded with malware, toolbars and browser add-ons that were impossible to avoid installing. Spent significant time cleaning everything up afterward. Encoder quality itself is abysmal, even at the top setting.
Thanks for the forewarning!
This is exactly like a truly helpful review would look like.
The guy on Mac (first reviewer) didn't have to deal with malware viruses ("because they don't exist on Mac", right?).
But as far as quality, MKV format is usually chosen precisely because it can support very high quality content.And when you convert it to other formats, especially most simplistic ones as AVI, video codecs(es) used in MVK compared to those used in AVI are like trying to fit fuel injection system of Lombardini on Ford Focus.
Not to go into the weeds on this, but in some rare cases, the combination video codecs/video formats and simply how the recording was done can make it virtually impossible to re-encode, and still say that the math works.
But for such niche cases/combinations of formats/etc. there're usually hacks out there that do pretty good job of re-encoding them.
But for true professional result - used analog signal conversion: unsurpassed quality + cost in >= $1M