#Quicktime player for mac formats movie
#Quicktime player for mac formats manuals
#Quicktime player for mac formats portable
#Quicktime player for mac formats pro
#Quicktime player for mac formats software

The audio stream in both types employs IMA (Interactive Multimedia Association) 4:1 compression, based on PCM sampling at 22 kHz.

#Quicktime player for mac formats manuals

For the special videos associated with the Dance Instruction Manuals collection, a second set of higher-resolution QuickTime files was produced, using the Sorenson codec at 15 fps and 320x240 pixels. Limited to video: American Memory has produced QuickTime files for web service since the mid-1990s, typically using the Cinepak codec at 10 fps and 160x120 pixels. QuickTime Image File Format, not documented at this time. QuickTime sound variants defined by other audio codecs, including uncompressed and lossless audio, not documented at this time.

#Quicktime player for mac formats movie

QuickTime movie variants defined by several other video codecs not documented at this time. QuickTime Video, Apple ProRes 4444 Codec Family QuickTime Video, Apple ProRes 422 Codec Family QuickTime File Format with YUY2 (yuv2) Video Encoding. QuickTime File Format with UYVY (2vuy) Video Encoding. QuickTime File Format with V210 Video Encoding. QuickTime Video, MPEG-4 Advanced Video Coding Typically a final state format for enduser delivery sometimes a middle-state format, e.g., the source when producing lower-resolution streaming versions.

#Quicktime player for mac formats software

Various sources, including the Wikipedia QuickTime article (consulted February 2, 2012), name a number of versions of QuickTime, from 1991 to the present, but these seem to be references to the QuickTime production or playback software rather than the file wrapper per se. An atom consists of a size, a type, and a data payload.'Īs of February 2012, two versions of the file format specification were offered by Apple: the 'classic' from 2001 and a newer version, as updated in 2012.

Sometimes they contain data and sometimes they contain other atoms. The MultimediaWiki reports, 'Atoms are chunks of data in that comprise a QuickTime file. Specialists describe QuickTime atoms as the format's fundamental building blocks. QuickTime also wraps still images (QuickTime Image Files), animations not recorded as video, virtual reality, etc., and these are not discussed at this site, with the exception of SWF_7 and SWF_8, the Flash SWF File Format (versions 7 and 8). This description is concerned with QuickTime as a video wrapper (generally with a synchronized audio stream), called 'movie' files by Apple, and as a sound wrapper, especially as used by Apple's iTunes music service. doing a System Profiler check on the drive to see what it was that they actually sold you, comparing original files against the copied files using a diagnositic tool like EXIFTool, etc.) as it might have provided this community with a better understanding of what that drive was doing (or not) and maybe shed some light on the missing File attributes (my suspicion here being that some other vital file identifiers got tossed in the mix while being copied to the external drive, too).īut, again, best to just return the offending item and move on.File format that wraps video, audio, and other bitstreams. I'd have been curious to chase down this problem further with you (i.e. Please note: Best practice here would be sure you zeroed out your data when you erase the device using Disk Utility prior to sending it back just in case you've stored any personal or financial information on the drive which could be accessed by unintended parties!

#Quicktime player for mac formats portable

Jetzz 1TB External Hard Drive - Portable Hard Drive External HDD Type C USB3.1 Storage Compatible for PC, Mac, Laptop (1TB, Blue)īased on the device 'not working as advertised', methinks your decision to return the item is the best way to go.no sense pulling one's hair out over something that 'should just work'. Graphics Intel Iris Plus Graphics 655 1536 MB

#Quicktime player for mac formats pro

MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports) Model/specs on your Mac and the external drive? Can you post a comparison screenshot of the Get Info window from an example original video file and a copied video file (blurring out any personal information, of course)?Įnclosed, with copy on left and original on right.Ħ. Yes a '3GPP', 'txt', 'QT', and 'pdf' do not open. Any other file formats (video or not) that do not open from the external drive? downloaded, paid content, acquired from other sources, etc.?)Ĥ. Are these video files something you shot yourself or are they from other sources (i.e. drag and drop? exported from a program?, using Time Machine or other backup software?, etc.)ģ. How did you perform the copying to the external drive? (i.e. So, the original video files you say 'will open from my computer', using which software?Ģ.