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4k 25fps

  1. 3

    MP 1,1-5,1 4k playback video laggy on Catalina and 3.1 Mac Pro

    Dear All, I have a question concerning 4K video playback. I've upgraded my 2008 Mac Pro 3.1. to following setup and think, that 4K video should play smoothly, but no, it is laggy and stuttering. Specs: OS: Catalina 10.15.12 Device: Mac Pro Early 2008 Processor: 2 x 2,8 GHz Quad Core...
    • 3LegsLuigi
    • Thread
    • 4k 25fps catalina 10.15.2 mac pro (2008)
    • Replies: 17
    • Forum: Mac Pro
  2. C

    Late 2017 iMac 4k

    I am in England near Norwich. Can anybody recommend a company that will upgrade the memory from 8 gig to 32 gig in my above machine? Thanks
    • ColG
    • Thread
    • 4k 25fps imac ram upgrade
    • Replies: 3
    • Forum: iMac
  3. Joshsand

    imovie 4K 'share to file' strange effect

    I did 4k 'share' test files in high, med and low resolution from iMovie to file. Put files on USB stick and tried to view on 4K TV. The 3 files are altered on TV screen with ._ added to front of names and are said to be unsupported file format BUT strangely there are 3 playable files showing...
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