Whether Plex is still supported on a Western Digital (WD) My Book device depends on which "My Book" product you own. The name "My Book" has been used for several different products over the years, including simple USB external hard drives and older network-attached storage (NAS) devices.For a standard WD My Book USB external hard drive, the answer is yes—but indirectly. Plex does not run on the drive itself because it is only a storage device. Instead, you install Plex Media Server on a Windows PC, Mac, Linux computer, or compatible NAS, and use the My Book drive to store your movies, TV shows, music, and photos. This setup is fully supported because Plex simply accesses the media files stored on the external drive.The situation is different for older My Book network storage devices, such as My Book Live or My Book World. These products have reached the end of their support lifecycle. Western Digital no longer provides software updates or technical support for these devices, making them unsuitable for running modern Plex Media Server versions.Plex has also ended support for several older NAS platforms, including legacy WD devices based on outdated ARM processors. These devices can no longer receive current Plex Media Server updates, and users may be limited to old software versions that no longer receive bug fixes or security improvements.If you own a My Cloud Home instead of a My Book, the situation is more favorable. Plex remains available as one of the supported "Do More" applications on My Cloud Home, although Western Digital has announced an eventual support lifecycle for that product as well.For most users today, the recommended configuration is to use a standard WD My Book external hard drive as storage while running Plex Media Server on a dedicated computer, mini PC, or another supported server. This approach offers better performance, regular software updates, improved security, and compatibility with the latest Plex features.In summary:WD My Book USB external drives: Yes. They work perfectly as storage for Plex libraries, but Plex runs on your computer—not on the drive itself.My Book Live/My Book World: No. These products are no longer supported by Western Digital, and modern Plex support has effectively ended.My Cloud Home: Plex is still supported through WD's available applications, although users should be aware of the product's future support timeline.If you're planning a new Plex server, a current PC, NAS, or mini computer paired with a WD My Book external drive remains one of the simplest and most reliable solutions.

Is Plex still supported by My Book?

Accidentally formatting a WD Passport external hard drive to APFS on a Mac is a common mistake, especially when setting up a new drive or following macOS prompts. While APFS (Apple File System) is optimized for macOS devices, it is not the best choice if you need to use the drive across different operating systems such as Windows and macOS. If your goal is cross-platform compatibility, reformatting the drive to exFAT is the recommended solution.Before proceeding, it is important to understand that formatting a drive erases all existing data. If the WD Passport contains important files that were lost during the accidental APFS format, stop using the drive immediately. Continued use can overwrite recoverable data. In such cases, you should attempt data recovery using reliable recovery software before reformatting the drive again. Once the necessary files have been recovered or if the drive does not contain important data, you can safely convert it back to exFAT.To reformat the WD Passport to exFAT on a Mac, connect the drive to your computer and open the Disk Utility application. You can find Disk Utility by searching with Spotlight or navigating to Applications > Utilities. In Disk Utility, click View and select Show All Devices so the physical drive is visible. Select the WD Passport drive itself rather than its existing APFS volume. Click the Erase button at the top of the window. Enter a name for the drive if desired, choose exFAT as the file format, and select GUID Partition Map as the partition scheme. Finally, click Erase and wait for the process to complete. Once finished, the drive will be formatted as exFAT and ready for use with both Windows and macOS systems.The exFAT file system offers several advantages over older formats like FAT32. It supports files larger than 4 GB, making it ideal for high-resolution videos, backups, and other large files. Additionally, exFAT is widely supported by modern versions of Windows, macOS, and many other devices, including smart TVs, gaming consoles, and cameras. This makes it an excellent choice for users who regularly transfer files between different operating systems.After the formatting process is complete, safely eject the drive and reconnect it to verify that it mounts correctly. Test the drive by copying a few files to ensure everything is functioning as expected. If you need to use the WD Passport exclusively with Macs, APFS remains the better-performing option. However, for users who require flexibility and compatibility across multiple platforms, exFAT provides the best balance of performance and convenience. By following these steps, you can easily restore your WD Passport to an exFAT format and continue using it without compatibility issues.