Ninadvisor

Serato DJ Pro for Mac delivers all the features and performance to meet the demands of DJs at the top of their game and sets the new standard for controller DJs. Load and customize your choice of high quality FX powered by iZotope including: Delay, Echo, Ping Pong Delay, Reverb, Phaser, Flanger, Distortion, HPF, LPF and a Combo HPF/LPF. Adjust and customize a range of parameters for each effect to shape your sound. Lock your tracks together for seamless grooves.
Smart Sync with Beatgrids gives you even more time to get creative. 4 deck mixing has never been better with the ability to create your own special blends of tracks, instrumentals and vocals without the pressure of keeping everything in time too. Less time making it work, more time at the party. Interoperable with Scratch Live, ITCH, DJ Intro and iTunes Music Libraries. Serato DJ for macOS is award winning, digital DJing software used by professionals across the globe.
Features and Highlights
Virtual decks
All the important track information you need is displayed on famous virtual decks. Get live BPM and track time information as well as visual representation of upcoming cue points and playhead position while scratching.
Colored waveforms
Visualize your tracks with unique EQ colored waveforms. Red for bass, blue for treble and green for mid-range. Never miss an incoming vocal or bass drop. Keep your tracks in time with a simple beat matching display next to waveforms.
Full DVS support
Use club standard setups with Serato Control Vinyl or CDs for the perfect emulation of real feel DJing. For turntablists there is the unique sticker lock feature to keep your routines super tight.
Recording + SP6
Record your full sets in customizable high quality formats, ready to share with your followers online. Trigger DJ stings, loops, acapellas, drops and whole tracks from the SP-6 sample player. Keep up to 24 samples loaded across 4 banks and sync them with your playing tracks.
Midi support
Add ready-mapped official accessories to your setup. Alternatively connect any MIDI device, or remap your primary device however you like to personalize your performances and increase your productivity.
Powerful FX
A huge array of customizable DJ FX powered by industry leaders iZotope. From the DJ necessities of Filters, Echoes, and Delays to complex and creative noise synths, dubbed out tape echoes and retro 8-bit audio bending FX.
Note: 14-day trial period. Serato DJ is now Serato DJ Pro, a free upgrade for existing DJ users. All supported hardware works too.
Also Available: Download Serato DJ Pro for Windows

Hey Andy,
Here are very specific instructions on moving a library from one internal drive to another:
There are a few steps to this process. First is to move your music from your old computer to the new one. Next is to move the ScratchLIVE folder from the 'My Music' folder (PC) or 'Music' folder (Mac) to the same location on the new computer. Last is to use the relocate lost files feature to calculate the location of the files on the new computer.
Step 1: Move your music library.
This pretty self explanatory. Copy your files to an external drive or put them on a cd/dvd to transport the files from the old computer to the next.
Place the files on your new computer wherever your wanting them to live.
Step 2: Move the ScratchLIVE folder.
Like I stated above, move the ScratchLIVE folder from the 'My Music' folder (PC) or 'Music' folder (Mac) to the same location on the new computer. If you already have a ScratchLIVE folder on the new computer than replace it with this one.
Step 3: Use the 'Relocate lost files' feature to have SSL find the files on your new drive.
Note: First make sure to unplug the external drive you might have used to move your library from the old internal to the new one.
Then...
1. Open SSL.
2. Click on the 'files' tab.
3. Click on the 'relocate lost files' tab in the lower left corner of the 'files' window.
That will find the location of the files on your drive and you should be good to go!