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MegaSeg is a complete solution for pro audio/video DJ mixing, radio automation, and music scheduling with rock-solid performance and an easy-to-use design. Mix with visual waveforms and Magic Trackpad cue and sync. Preview tracks with optional audio outputs and MIDI control. Enjoy fast access and elegant management of your iTunes library, including iTunes Match. Segue or beat-mix between songs or music videos, trigger sound effects via hot keys, note requests via color-coded request lists, cue and preview tracks via multiple sound outputs, create dynamic scheduled playlists, program automatic playlist events, and more... more...

What's New

Version 5.9.3:


  • Artwork: Fixed a bug where album artwork might not display correctly when segueing quickly.
  • Decks: Toggling Pitch Lock maintains the output device's channel setting.
  • Edit Category: When multiple categories are selected, it consistently scrolls to the first one.
  • Fixed a rare issue where loading the library could stall at more...


OS X 10.4 or later

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MegaSeg User Discussion

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Jonathan Gleeb Member IconReview+4
Jonathan Gleeb

This app have always been a crappy app and will stay that way until somebody with a clue does a complete rewrite.

The autoplay of Traktor DJ Studio is way way better for a broadcasting radio studio and very stable too. Don't get me started on DJing.

Reply0 replies
Version 5.8.4
Drewman21 Member IconReview+9

MegaSeg has been a great automation solution to our college radio station for 10 years and it has been great. The developers took a few of our suggestions for making it better for our use and implemented them in the next version they released. We run it over summer vacation at our station and it runs for 3 months without issue. For the money its a great app if you are looking for a solution for a low power or school radio station. The manual is a bit long but it does cover EVERYTHING you need to know and some you might not even thought of. Once it is setup you are good to go for a long time without worry.

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Version 5.8.1
Maclover1.1 Member IconComment+740

Ugliest interface ever... stuck somewhere in 1995.. For the same price you get Traktor Pro or Virtual DJ or Deckadance..

Reply1 reply
Version 5.5.2

You cannot compare this with Traktor Pro - different tasks. This one is for automated radio shows. Special feature is that you can time events, change song moods at a certain time or have a special announcement at midnight. And a very fine grained automated protection against song repetitions, like radios need it.
Traktor Pro, DJay, etc. are more for live entertainment fun with a DJ present.

Interface is 90ies, I agree on that ;-)
But Traktor also does not look especially "nice", to be honest.

caberlin Member IconComment+62

(Comment on my previous Review for 4.0.1.)

Dropouts are gone(!) on my Mac with the new 4.0.2.
(If you still have dropouts, try how it is with "keep drives spinning" OFF in the prefs.)

Also the developer is now very responsive to reports and questions.

Since this were the only main points annoying me with the app, and they are gone, I can now update my personal rating to a full 5 stars. I start really loving this toy.

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Version 4.0.2
caberlin Member IconReview+62

nice and clean interface. great for a half-automatic party with the ability to drop in special songs from a wishlist at a given order or given time!! (think of a midnight special at a birthday party)... much superior to iTunes in that respect.

still Dropouts on my MacBookPro at many songs and/or certain button clicks
does not sync nicely yet with iTunes (tons of errors with importing tags and stuff)
search features could be much improved.

If the few bugs are removed it will be my favourite toy for private party dj-ing...
You should also check out Disco XT, that one goes the same direction with it's automatic playlist... At the moment I prefer the UI of Megaseg but Disco XT has no dropouts and that counts.

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Version 4.0.1
Anonymous Member IconReview

(Pardon my english)
This kuffin hitsh doesnt work correctly.
For more than weeks, i try to setup events and playlists. Yesterday, the first Day them works fine, correctly loaded n played for bout 12 hours.

Last Night, the loading of events n playlists stopped. And now, the programmed n saved events wouldnt run anymore.

Reboot n Reload without any improvement.

Anybody knows help?!
Thx 4 answering. :(

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Version 3.1.4
Anonymous Member IconReview

If your only goal is to replace iTunes for your home entertaining, ok it doesn't worth the price...

But if you're running a commercial radio, broadcasting 24h/day, the price is just a joke !

This app is VERY stable, the database is tweakable, the level of customization is good, etc...

I was on the move to leave the mac platform for broadcasting uses until I've found this jewel !

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Version 3.0.1
Anonymous Member IconReview

are you kidding me??
169 bucks for this "carbon" app....
no way!!!

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Version 3.0.1
Anonymous Member IconReview

Comment from Switzerland (in bad English): I think, this is a "Builded with RealBasic"-Application, so there's no way to be "fast or stable". Beware! RealBasic is very, very good to learn some basics in programming (thanks RB), but that's all. Don't pay money for "Builded with RealBasic"-Applications! Sorry for being such a smart ass, but I wasted too much time with RealBasic: it was full of non-working "features"... and after a few months I stopp'd working with this crap-basic-compiler-nonsense-stuff. Sorry again! I don't start RB-Apps on my Mac. If I start one, after a few seconds I KNOW this is builded with REALBasic (slow, crashes, flickers) - most of the RB-Freaks aren't good programmers, they are like kids exploring de world of a sandbox with the illusion they stay in the heaven.

Reply2 replies
Version 3.0
Anonymous Member Icon

funny thing is: this particular RealBasic application (is it really written in RB?) is pretty darn stable and almost offers real-time performance. Can't say that of some other non-RB DJ'ing apps...


Hi, Anonymous.

I'm having some difficulties with MegaSeg 3.1.6 on a MacMini running MacOS X - 10.3.4 I belive it was. I'm trying to understand anything about what is going on. Could you elaborate some on what characteristics I should expect from an application built of RealBasic? The issue I am having is that from time to time it just stops playing music for about 30 seconds with the spinning rainbow disk, and then it resumes.

What I have observed with Activity Monitor is that when it is open, and not doing anything it consumes 15% of the CPU. When it is playing music, it takes 20%. The 15% is puzzling. I would expect an idle application to take nearly nothing while waiting for an input event. Is this related to a behavior you would expect from RealBasic?

The other observation from Activity Monitor is that MegaSeg seems to run either 4 or 5 threads when idle, and 1 more thread when playing music. You can reliably start and stop the playlist and see the thread count go up and down by 1, and simultaneously the CPU usage goes up and down by 5%. When it goes into the aberrant "stopped playing" mode, the CPU usage flutters down in the 0-1% range and the number of threads drops to 1 less than the normal idle thread count (3 or 4).

If you or anyone else out there could shed any light on MacMini issues or RealBasic issues or specific MacOS version issues that might be at play here, I'd be most appreciative.

Oh. Other symptoms and environmental things are:

This is being run on a very restricted account which can only run MegaSeg (I specifically enabled the ability to run Activity Monitor to see what was happening). I have run Disk Utility and Repaired the disk Permissions. I have booted it in safe mode to attempt to kill any rogue processes. I have cleaned out the MegaSeg logs. None of this had any noticeable effect.

The 30 second episodes were first noticed at a rate of a few episodes per day, which was annoying. Over the past several weeks, it has progressed to several (5-15) episodes per hour, which is unusable. The music is on an external disk. The music is in wave format. The library contains almost 18000 songs. MegaSeg is set to keep all disks spinning.


Anonymous Member IconReview

Is there any way to get this program to send its output to the audio port on an Airport Express (like iTunes does)? Also, is there a way of mixing in an additional signal coming from an analog audio input into the stream? To truely be a full dj solution for us we need that analog input to accept signals from a microphone preamp, satellite receiver etc. With the ability to feed to an Airport Express we could do remote broadcasts, or feed directly to our transmitter site. We'd use a modified Airport Express with an external antenna, and have an antenna on our laptop's wireless card as well.

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Version 2.7.4
user icon+80
Version 5.8.2
user icon+0
Version 5.7.1
user icon+0
Version 5.5.6
> 4 10


Current Version (5.x)


Downloads 28,684
Version Downloads 101
License Demo
Date 10 Jun 2014
Platform OS X / PPC 32 / Intel 32
Price $99.00