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Transfering files NTFS->HFS ->NTFS

Hello everybody !


I do understand that there are already A LOT of topics and solutions about how to deal with external drive with NTFS file system from Mac. But nevertheless, I still DO NOT want to use 3d party programs and apps for a pretty simple reason : data located on my NTFS external drive is EXTREMELY important for me and there is no way I can lose or corrupt it (for example there are my childhood photos, passwords, bank info etc). That is why I am only interested in SAFE ways to transfer data.


Therefore I found pretty unusual way to achieve my goal:



I backup my HFS files to external drive via bootcamp Win7. Since I am able to view all Mac files while in bootcamped WIndows, I just copy/paste everything to my external Western DIgital NTFS drive.



HERE IS THE QUESTION.

Is it 100% safe to transfer a file from HFS+ to NTFS, then back, and then again to NTFS (etc) this way ? Or is there any chance that once upon a time a file may become corrupted because of often transfers between two different file systems?



Thank you in advance !

MacBook Air, Mac OS X (10.7.1)

Posted on Nov 25, 2012 5:09 AM

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Posted on Nov 25, 2012 5:13 AM

I transferred a lot of files from NTFS to HFS disks and I didn't have any problem, but OS X needs third-party programs to write in NTFS disks. If you don't want to use an application, the only solution is to format the external disk in FAT or exFAT. exFAT is a filesystem supported on Windows and OS X created by Microsoft, and it was specially designed for external disks

28 replies

Nov 25, 2012 12:24 PM in response to Csound1

May I know your point of view - why dont you want to use 1 portable device and 2 monitors on 2 continents instea of 2 desktop computers on 2 continents ? First case would allow you to escape this issue (well I do realise that this is not an issue for you) : "the machine there will match the machine here"

Nov 25, 2012 12:28 PM in response to Moloy

Moloy wrote:


May I know your point of view - why dont you want to use 1 portable device and 2 monitors on 2 continents instea of 2 desktop computers on 2 continents ? First case would allow you to escape this issue (well I do realise that this is not an issue for you) : "the machine there will match the machine here"

When i get to either location I travel, so I need a portable, and I have an iMac desktop at home. I no longer carry a portable when I change from Europe to USA having had it lost (once) and broken (once), it's simpler to have 2, and I detest carrying stuff, I'm the lightest traveler you ever saw 🙂

Nov 25, 2012 1:35 PM in response to Moloy

Moloy wrote:


Well I dont realy think we should explain each other our points of view about MacOS 🙂 You are right, there are ways to escape bootcamp, I just need to rearrange something. The only REAL problem now is the 90-100 celsius temperatures. That is what excites me more then anything else. And this is my second mba, same temperatures...so...I think it is not a hardware problem. I do understand that the computer will shut down if the temp gets too high, and the inter core i top temperature is 105 (sory if I messed a bit), but that kind of heat is frightening for me as a human being, its difficult to realise that everything is ok... 100C is enaugh to boil water...no problem..continue video editing... To compare - my PC during serious load is about 57C


You may be comparing Apples to oranges there. I suggest you start a new question on this topic. Generally, the more people obsess over CPU temperatures, fan speeds, memory usage, and battery health, the more problems they find. I don't see PC people obsessing to the same degree that Mac people do 🙂


Ok I guess I am falling to another topics))) I just wanted to know if its SAFE for a file to be transfered from HTFS to HFS over and over again


Yes. It is perfectly safe until you corrupt your file system and/or your drive fails. All drives will fail eventually. If your data is important, archive it, don't modify it.

Nov 25, 2012 1:41 PM in response to markwmsn

markwmsn wrote:


Two comments on etresoft's post:

* Even if the Windows use is only inside a virtual machine, Time Machine may not really be the right tool for backing it up. Doesn't it tend to back up (and then restore) the whole virtual machine as a unit?

Yes. Virtual machines should be excluded form Time Machine. Virtual Machine software such as Parallels has a handy checkbox to do exactly that. VM files should be archived manually. You can still use Time Machine by using advanced VM features to share the Mac home directory with Windows.


* If you use only Time Machine for backup, you should rotate among several TM disks and keep one offsite. How far offsite depends on how large a catastrophe you want your data to survive.


I use Time Machine as part of a tiered backup strategy for a varying number of computers. I find it very convenient, but not a complete solution for me.

Ideally, you can have a sophisticated RAID with tape backup that you run religiously every day and archive to a secure, offsite location. But really. Who does that? Time Machine is designed for real people who don't do that. Plus, it provides hourly backups and easy restores. If you use a Time Capsule, you don't even have to touch it.

Dec 4, 2012 2:33 AM in response to Csound1

"Part 2 is the data storage and archive and I want that offsite so I use a service, I have 500G online that backs up all the machines (if connected to the internet) all the time, it keeps the data folders of all machines in sync and requires only that you are using the computer."


Csound1, could you please recomend some website that offers such option? (sync all folders online)

Dec 4, 2012 9:39 AM in response to Moloy

Moloy wrote:


"Part 2 is the data storage and archive and I want that offsite so I use a service, I have 500G online that backs up all the machines (if connected to the internet) all the time, it keeps the data folders of all machines in sync and requires only that you are using the computer."


Csound1, could you please recomend some website that offers such option? (sync all folders online)

SugarSync is the one I use.

Dec 4, 2012 8:47 PM in response to Csound1

Ty a lot!

BTW speaking about hfs+ / ntfs transfer problems: once I entered the bootcamp partition (while I was working in Mac OS) just to copy few files on the flash drive, my mba froze for a sec and then reloaded with a grey screen message (as well as I understand, it is called "Kernel Panic").


So...here we go)) I start to understand the words of etresoft : "Generally, the more people obsess over CPU temperatures, fan speeds, memory usage, and battery health, the more problems they find."


Maybe I will just buy Parallels desktop, it might make it easier to access windows files while using mac os (and vise versa)

Dec 4, 2012 9:01 PM in response to Csound1

Yea, sure I do understand that parallels desktop Windows will be way slower, then bootcamped windows. But for casual tasks, like using MS Office, or editing files located on bootcamp partition I think its ok. + I wont have to waste time and battery life on multiple reloads.

I am not sure that it is realy so easy to add ram on mba )))) But anyways 8gb must be enaugh i guess

Aug 30, 2013 12:58 AM in response to Moloy

I hope this is a topic where i can put this query.

I have transfered some videos iphone to mac and then from mac to ntfs hard disk. I have Paragon installed on my pc which enables this transfer to NTFS HD.

Now, after i transfer this videos to NTFS and play it on mac or windows, they do not play. The extension of these files are .mov and on windows it shows as RMP format.

pl help me how to play this videos.

Transfering files NTFS->HFS ->NTFS

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