This challenge is extensively reported on Apple assist and particular person app assist boards all around the Web. I imagine it has little to do with the quantity of free area in your iOS system, however as a substitute iTunes is ambiguously informing you in regards to the quantity of free area in your pc’s arduous drive. Although the assist article I hyperlink is regarding backups failing to revive via iTunes, it does describe the problem.
What is going on is iTunes has decided there may be not sufficient free area in your arduous drive to backup the iOS system as soon as that file syncs over. The rationale for that is that by default, iOS system backups embrace all apps and all paperwork these apps retailer (together with your giant mkv file), which is why if you sync, the longest course of is normally the primary one, the infamous backup course of, which happens at each sync.
disable full iTunes backups
Altering the habits of iTunes backups to disregard the paperwork saved in your iOS system is one answer to your challenge.
to disable full iTunes backups on OS X, enter this command in /Purposes/Utilities/Terminal.app :
defaults write com.apple.iTunes DeviceBackupsDisabled -bool true
to reenable the complete iTunes backups swap to false:
defaults write com.apple.iTunes DeviceBackupsDisabled -bool false
For disabling full iTunes backups in Home windows, please see these directions.
unlock area in your arduous drive
delete iTunes backups
One straightforward approach is to delete the outdated iTunes backups you are storing. See the “Deleting a backup in iTunes” part of the Apple assist article linked right here, which I’ll quote beneath:
If you wish to delete a backup created by iTunes, comply with these steps:
- Open iTunes Preferences:
- Home windows : Select Edit > Preferences
- Mac: Select iTunes > Preferences
- Click on Units (the iOS system does not must be linked).
- iTunes will present the cellphone quantity, IMEI, and serial variety of the backed up iPhone if you place your mouse pointer over a backup (iTunes reveals solely the serial quantity for iPad and iPod contact). You should utilize this to search out the backup you wish to delete.
- Choose the backup you wish to take away and click on Delete Backup.
See the article linked on this subheading for straightforward methods to clear area in your arduous drive when you’ve got a Mac. For clearing up free area on Home windows, do this information.
Monolingual
One other fairly painless solution to unlock arduous drive area is to make use of an open supply utility like Monolingual to take away pointless language assets from OS X, which by itself can unlock tons of of MB.
Different suggestions
You’ll be able to view your video within the iOS native media participant with out transcoding
Subler is a utility designed particularly for including subtitles to video recordsdata. It would additionally, nevertheless, merely copy and rewrap, and never transcode, the AVC (h.264) encoded video wrapped in mkv to a pleasant format, and it’ll transcode the audio from ACC to AAC if needed. Additional, it can additionally optimize the situation of the mpeg-4 atom within the ensuing file for iTunes pleasant use. It makes use of a pleasant drag and drop paradigm. Obtain Subler, unzip into your Purposes folder and launch Subler. Kind command-n to start, and drag your mkv file into the window, and select from the easy accessible choices to transform your mkv file with out transcoding. Then import your new mp4 file into iTunes and sync to your iOS system.
For Home windows methods, MkvToMp4 is an software that equally will reformat your mkv to mp4 with out transcoding. Whether or not the ensuing mp4 file can be pleasant to iTunes stays to be seen, however it’s price a attempt to have the ability to losslessly convert video recordsdata from one format to a different.
Alternatively, this bash script makes use of ffmpeg, SublerCLI and HandbrakeCLI to batch rewrap, transcode or in any other case convert video recordsdata of varied codecies and iTunes/iOS incompatible wrappers to iTunes/iOS pleasant codecs, mechanically selecting a technique that retains the very best high quality resultant file. It, nevertheless, takes little bit of studying and understanding the script to get it to put in its dependencies. Additionally it can take a number of time to finish processing if set upon a number of recordsdata requiring HandBrake transcodes, and whereas doing so finally eat up all of your free reminiscence within the course of. It is vitally covenient as soon as it’s working and set in your $PATH, will eat via listing constructions changing unfriendly video codecs the place it finds them, and nondestructively will place authentic recordsdata in your ~/.Trash so you’ll be able to preview the resultant recordsdata earlier than eliminating the originals.
Technically, you need to use bash scripts on Home windows when you first set up Cygwin. The script linked above would seemingly want some adjusting to work beneath Cygwin, but when studying a little bit bash does not kill you, then it can solely make you stronger. 😉