Conversion to Logic Pro X: Old Emagic Classic Mac OS files, Early OSX and Apple Logic Files, .LSO and .SON files

If you get this error when you try to open a Logic file that is too old you will need to get it converted to a new version:
"The format of this project is not compatible with this Logic Pro X Version."

Apple Logic Pro X (version 10.5.0 released May 12, 2020) cannot read most of the old Logic files formats going back over 30 years. We can convert almost any legacy Logic file to a full Apple Logic Pro X .logic session, including the following:

  • Logic .LSO files (Windows 95/98/XP)
  • Notator .SON files (Atari ST)
  • Logic Audio Platinum/Gold/Silver and MicroLogic, (Classic Mac System 7.x, OS 8.x OS 9.x, these OSes did not use file extensions)
  • Logic Audio Platinum/Gold/Silver/Express, Logic Pro 4, 5, 6, 7 with lower case .lso or no file extension (Emagic Windows and post-Apple acquisition eras OSX 10.0 - 10.5)

For Classic Mac and Mac OSX sessions you don't need to send any audio files if you can see that you already have them (unless it is SD2, and if you are not sue you can send them anyway). The conversion is just to the session file which can then relink to your existing audio files once you place it in the same directory as the Audio Files folder. Logic Pro 8 and 9 session can be read by Logic Pro X with no problems (but if they don't work for you we can fix them). However, Logic Pro X cannot open: Classic Mac OS and OSX Logic sessions made with Logic Pro 4 or earlier, Logic for Windows or Logic for Atari.

You can email us your files or send them on physical media such as floppy disks, Zip disks, Jaz disks, CDR, DVDR, SCSI drives or DDS tapes and we can read and convert them.

If you do not wish to use Apple Logic Pro X we can convert the sessions files to standard midi files and the audio tracks in .aif into .wav files. This will allow you to mix in Pro Tools, Digital Performer, Ableton Live, GarageBand, Cubase, Reaper, Sonar or any other DAW or MIDI sequencer you wish to use. We can import the audio and midi from old Logic sessions into Pro Tool, Cubase and Ableton Live Sessions for an additional fee. If you used the EXS24 sampler you must send us the .esx files as well as the samples that it references. You might not be able to tell if this is the case if you cannot open the file, so we may ask you for these after we discover that the sampler was used. For these sessions you will need to send your audio files, .esx and samples for conversion. Contact us today for a quote.

Emagic (originally C-LAB) was a German company that gained notoriety with their advanced MIDI sequencing programs Creator and Notator in the late 80's, which ran exclusively on the Atari ST. In 1992, after continuous development, a version of the software known as Notator Logic was released for Mac, Atari ST, and later for Windows.

Emagic Logic in Windows XP screen shotFollowing the success of the software and establishing a loyal user base, the program was rewritten with many enhancements and the "Notator" part of the name was dropped and re-branded as Emagic Logic. In 2002, Apple purchased Emagic and changed the name of the program to Logic Pro. Following the Apple acquisition, development for all other operating systems (aside from Mac OSX) ceased, and Apple no longer supports older Emagic .LSO files below version 5.

Emagic Logic Audio Platinum 4 for Mac OS 8.6 screen shot

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Why Choose Deep Signal Studios?

  • File conversion work and tape transfers can be tedious and frustrating. Your time as an artist is better spent working on your music and mixes on a platform you know.
  • All work is completed by certified engineers with over 20 years experience with DAWs, MIDI sequencers, notation software, synthesizers, samplers, and tape machines. We have comprehensive knowledge about everything that has come and gone, as well as all current and emerging platforms.
  • Services are performed by native English speakers in the recording capital of the world, Los Angeles, CA.
  • Your files are secure. All work is performed in-house and in strict confidentiality. Client files are archived for 30-days upon completion of the project, and promptly destroyed thereafter.