Mobile Fidelity Sound Lab (MFSL, or "MoFi") is a company that produces audiophile releases of classic CDs and vinyl records.

Many commercial CDs undergo dynamic range compression in order to sound "louder" when played on radio or low-end systems. Some consider this detrimental to the sound quality when reproduced on high-quality equipment. Mobile Fidelity Sound Lab releases are highly desirable due to their attention to detail concerning the audio mastering process. Some of the techniques used are half-speed mastering and pressing gold-plated CDs. MFSL also releases record albums meant to be played at 45 RPM instead of the standard 33⅓ RPM, for better sound quality. These albums must be released on two or three discs, as less music can be held at increased speed.

MFSL only acquires the license to reproduce releases for a specific time period, and because of the limited quantities produced, they are highly sought after.

The Mobile Fidelity Sound Lab Philosophy

Mobile Fidelity Sound Lab's ongoing quest is to deliver the foremost sounding audio entertainment software that technological innovation can provide. From our first UHQR™ vinyl LP to our latest Ultradisc UHR™ SACD, we have been and will remain a steadfast innovator in the audiophile frontier. We further believe that technological development serves best when accompanied by a profound awareness and appreciation for the elusive magic and mystery that comprises music itself. Our greatest hope is that our products will serve as conduits for ears ands souls to experience premium, pure, natural sound reproduction of diverse, pre-eminent original master recordings across the entire musical spectrum



This is definetely one of my top five favourite albums ever. I listen to it regularly and I never get tired of it. This occasionally amazes me. After all, this music is simple enough: standard jazz tunes, two voices, and a very discreet accompaniment by only a piano (and Peterson, who is so incredibly virtuoso when playing alone, is excellent at understating and remaining in background on this album), drums, a bass and sometimes Louis' trumpet. But the result is magical. Ella and Louis are perfect together, although their voices and styles couldn't be more different. Another reviewer described the blend as "gravel and molasses", and I couldn't put it better. Ella's sweet, pure voice and Louis' rough growl create a contrast that is just ravishing to the ear. And each song is filled with that discreet, subtle, intoxicating swing (kudos to the musicians as well as the singers, for that). Music like this can just brighten your day

“

A SONIC WORK OF ART. These Out of Print gems are the Ferrari of the audiophile CD market. Many over the last year have doubled or tripled in value. The future of these collectibles is so exciting because each piece is a sonic work of art that will never be reproduced using this expensive 24-Karat Gold mastering process. You will be one of only a few thousand in the world owning this audiophile classic Another one MUST HAVE... You need FEURIO,NERO, Alcohol, EAC to burn image to music CD; load CUE file... easy... :-)

”