# Correct file format specs Qu-5 playback USB A

**URL:** https://forums.allen-heath.com/t/correct-file-format-specs-qu-5-playback-usb-a/29565
**Category:** Qu General Discussions
**Created:** [4 September 2025 09:21 UTC](https://forums.allen-heath.com/t/correct-file-format-specs-qu-5-playback-usb-a/29565 "2025-09-04T09:21:25Z")
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### Author: ![ShadowSound](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/shadowsound/32/8080_2.png) [@ShadowSound](https://forums.allen-heath.com/u/ShadowSound)
#### Post date: [8 September 2025 17:02 UTC](https://forums.allen-heath.com/t/correct-file-format-specs-qu-5-playback-usb-a/29565/57 "2025-09-08T17:02:58Z")

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I don’t know if there is any sort of correlation, but MacOS does seem to have issues with regards certain aspects of Allen & Heath procedures. Main one being in relation to firmware updates of consoles. Might be that the formatting the drive on Mac also creates certain file structure issues that the A&H consoles don’t like? Wouldn’t put it past Apple to change the file structure of the format style just enough to make it their own rather than universal.

> [@SQ5 Firmware Update](https://forums.allen-heath.com/t/sq5-firmware-update/13823/31):
>
> Hi Brad, This is now listed as a known issue on the resources page where you download firmware, with a link to this article - [https://support.allen-heath.com/hc/en-gb/articles/27372432963729-Issues-when-copying-firmware-files-to-a-USB-drive-using-macOS](https://support.allen-heath.com/hc/en-gb/articles/27372432963729-Issues-when-copying-firmware-files-to-a-USB-drive-using-macOS) Which includes more info and the workarounds. In short, the recent macOS does not truncate and number filenames in a standard way, but it’s possible to rename the file manually before copying to the drive. Thanks, Keith.

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