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I just got a LaCie 1TB external hard drive and I have a MacBook Air with OS X 10.8. I often exchange movie and music files with friends that have PCs.

  1. If I were to partition my drive to have 250 GB formatted to FAT32, and 750 GB formatted to HFS+ to be able to exchange files with friends, can I also move files back and forth from the formatted FAT32 portion of my hard drive to the HFS+ portion of my hard drive?
  2. And if I can do that, would the file exchange from the differently formatted partitions
    • have to be done on a PC,
    • or could I do it on my Mac?
  3. Also, is the HFS+ system compatible with the old school Mac books?

I am not tech savvy, so I apologize for the verbose, non technical wording.

  • Assuming these "movie and music files" in which you "exchange files with friends" are not your own original works from un-copyrighted sources... I guess there's nothing like publicly admitting to criminal copyright infringement, which in the case of the movies alone is punishable with 5 years in prison and 250K fine per movie you copy to that device and give to someone else. – user3439894 Jul 21 '15 at 14:51
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It might make sense to make the entire drive FAT32 to ensure readability between systems, unless there is a need for having multiple partitions not described in your question. As for the specific answers,

  1. Yes, dependent on #2
  2. The files MUST be moved on a Mac because a PC cannot read an HFS+ partition by default and even then, cannot read without special software. Your friends would only be able to read the FAT32 portion of the drive.
  3. Yes, your older Macbooks should be able to read the partition, and compatibility exists all the way back to OS 8.1 (source)
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    if the files you're moving are bigger than 4GB it could be better to format as exFAT: Windows 7,8 and presumably 10 have native support for this file format (XP and Vista can also handle it with the proper patches) and it also works with OS X (≥10.7) – Jaime Santa Cruz Jul 20 '15 at 19:49
  • @JaimeSantaCruz, excellent point, I will add that Mac OS's handling of FAT file systems in general is glitchy at best, as it's all reverse engineered without documentation from Microsoft. I had to format the drive for exFAT on a windows machine before it would play nicely with my Mac and windows boxes. – agentroadkill Jul 21 '15 at 3:29

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