Hi, I am a newbie to BIAB and RB. 1. I have a song in RB containing MIDI and Real Tracks 2. Was intending to save as .mp4 3. the Rendering pop-up shows up, and the rendering seems to complete 4. No .mp4 file is generated
What version of the programs and what Operating System? Some Windows machines won't write mp4 and just read them
You may need to install a codec that can 'write' mp4 format. Quiktime or K-Lite would likely work as a guess /as always, scan any download before installing and watch every screen during the install to make sure you don't unintentionally install something else with it
I recently built a new machine and when I try to save as MP4 I get a yellow warning box during the process (see below)
I do not work here, but the benefits are still awesome Make your sound your own!
Hi, I am a newbie to BIAB and RB. 1. I have a song in RB containing MIDI and Real Tracks 2. Was intending to save as .mp4 3. the Rendering pop-up shows up, and the rendering seems to complete 4. No .mp4 file is generated
Would appreciate the help, Thank you, Martin
Do you (or did you) mean to say Mp3? Mp4 is a video/audio container. Unless you wanted a video (doesn't sound like you did), it would be an odd choice. That MIGHT be why no .mp4 file was made, but I can't hazard a guess as to why exactly.
I'm a Windows user myself but I believe the native compressed audio file format for Mac is MP4. It is the equivalent of a wma file in the Windows world. I'm pretty sure the compressed Band-in-a-Box for Mac RealTracks are saved in the MP4 file format and the uncompressed RealTracks are AIF.
I'm sure a Mac user will chime in to confirm or deny.
I kinda thought that was the case, Jim. Seems like I've heard that along the way about Mac files. But he ID'd as using Windows 8.1. New to BIAB and RB...maybe new to encoding audio period? Worth a shot.
But we can dream my friend. What could be better than introducing another person to Band-in-a-Box? If not before then after such a kind gesture you would surely have a friend for life!
Band-in-a-Box 2026 Video: The Newly Designed Piano Roll Window
In this video, we explore the updated Piano Roll, complete with a modernized look and exciting new features. You’ll see new filtering options that make it easy to focus on specific note groups, smoother and more intuitive note entry and editing, and enhanced options for zooming, looping, and more.
Band-in-a-Box 2026 Video: AI Stems & Notes - split polyphonic audio into instruments and transcribe
This video demonstrates how to use the new AI-Notes feature together with the AI-Stems splitter, allowing you to select an audio file and have it separated into individual stems while transcribing each one to its own MIDI track. AI-Notes converts polyphonic audio—either full mixes or individual instruments—into MIDI that you can view in notation or play back instantly.
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MIDI Styles Set 92: Look Ma! More MIDI 15: Latin Jazz
MIDI SuperTracks Set 46: Piano & Organ
Instrumental Studies Set 24: Groovin' Blues Soloing
Artist Performance Set 19: Songs with Vocals 9
Playable RealTracks Set 5
RealDrums Stems Set 9: Cool Brushes
SynthMaster Sounds Set 1 (with audio demos)
Android Band-in-a-Box® App (included)
Looking for more great add-ons, then upgrade to the 2026 49-PAK for just $49 and you'll get:
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FLAC Files (lossless audio files) for the 20 Bonus Unreleased RealTracks and RealDrums
MIDI Styles Set 93: Look Ma! More MIDI 16: SynthMaster
MIDI SuperTracks Set 47: More SynthMaster
Instrumental Studies 25 - Soul Jazz Guitar Soloing
Artist Performance Set 20: Songs with Vocals 10
RealDrums Stems Set 10: Groovin' Sticks
SynthMaster Sounds & Styles Set 2 (sounds & styles with audio demos)
Join Tobin as he takes you on a tour of the new user interface in Band-in-a-Box® 2026 for Windows®! This modern GUI redesign offers a sleek new look with updated toolbars, refreshed windows, and a smoother workflow. The brand-new side toolbar puts track selection, the MultiPicker Library, and other essential tools right at your fingertips. Plus, our upgraded Multi-View lets you layer multiple windows without overlap, giving you a highly flexible workspace. Many windows—including Tracks, Piano Roll, and more—have been redesigned for improved usability and a cleaner, more intuitive interface, and more!
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Xtra Styles PAK 21 for Windows & Mac Band-in-a-Box version 2025 (and higher) is here with 200 brand new RealStyles!
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Note: The Xtra Styles require the UltraPAK, UltraPAK+, or Audiophile Edition of Band-in-a-Box®. (Xtra Styles PAK 21 requires the 2025 or higher UltraPAK, UltraPAK+, or Audiophile Edition. They will not work with the Pro or MegaPAK version because they need the RealTracks from the UltraPAK, UltraPAK+, or Audiophile Edition.
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