DelphiFAQ Home Search:

What is an *.MDF file ?


comments118 comments. Current rating: 5 stars (25 votes). Leave comments and/ or rate it.


What is an *.MDF file?


If it is a rather large file, e.g. 650 MB, then it is most likely a CD image. If it is a file of smaller size, see at the end of this article. These MDF image files are created using a CD/DVD CD/DVD image file editor (and CD burner and CD/DVD backup tool) called MagicISO Maker.
MagicISO Maker can directly create, edit, extract, and burn ISO/MDF files. It also can convert almost all CD/DVD image formats to ISO/BIN/CUE, Nero (.NRG), and CloneCD (.CCD/. IMG/. SUB). With MagicISO, you can handle DVD image up to 10GB; make CD image files from CD/DVD-ROM; also can burn ISO files and other CD/DVD image files (BIN, IMG, CIF, NRG, BWI, VCD) to CD-R/RW; support loading boot image file exported by WinISO and UltraISO; burn CD image files in ISO9660, Joliet, and UDF format; edit properties of CD/DVD image files; it has the ability to correct volume serial number after editing original CD/DVD image file; search files or directories with wildcard characters in CD/DVD image file.

You can download it here:

Not a CD image file?

If you cannot open your MDF file with Magic Iso Maker, then it may be a database file. dBase used to store their memo fields in a separate file. Regular tables were stored in *.dbf files, memo files were stored in *.mdf files.

SQL Server 2000 creates MDF files as well.

Content-type: text/html


You are on page 5 of 8, other pages: 1 2 3 4 [5] 6 7 8
2008-02-13, 05:05:07
anonymous from New Delhi, India  
i think above quotes mus be true since i hav downloaded some files in the giga sizes and hopefully iso maker mus read them........

2008-02-18, 14:16:02
anonymous from United States  
2008-03-11, 12:06:27
anonymous from United Kingdom  
thanks magickroundabout, i got my game working now :D
2008-03-15, 07:32:29
anonymous from Philippines  
2008-03-15, 09:54:47
roguedog from Canada  
thx Neeshu
2008-03-16, 06:59:09
tinulka from Slovak Republic  
Found some really helpful info here...THNX!

2008-04-05, 23:20:21
dtp from United States  
2007-03-19, 19:11:25
anonymous from United States

After reading through this whole thread, I find that a lot of you are either illiterate or incompetent. To those who keep asking about what to do with '.MDF' and '.MDS' files and how to convert it to other formats, it has been explained here a billion times. Here it goes again, for the n00bs, and hopefully the last time it needs to be explained:

1) To convert an '.MDF' to an '.ISO' just use UltraISO or MagicISO (I use UltraISO). Open UltraISO, click on 'Tools' then on 'Convert' then for 'Input Image Filename' browse and open the '.MDF' file you want to convert. Just FORGET about the '.MDS' you won't need that.

2) For 'Output Directory', the 'Use Input Directory' should be checked and you should leave that as is, and the new converted file would be saved in the same directory as your '.MDF').

3) For 'Output Format' select 'Standard ISO (.ISO)'. You can also select other formats such as BIN/CUE and IMG/CCD/SUB.

4) Click 'Convert'. You should see a small window with a progress bar. If it has been successfully converted, it would say so.

5) You can now find the '.ISO' file that was created and burn it to a CD or DVD if you'd like with Nero or whatever you use to burn, or just mount it using Alcohol 120% or UltraISO (which works for this too).

6) To mound the image using UltraISO, just go to 'Tools' then 'Mount to Virtual Drive' or press 'F6' then 'Mount' and it should now be recognized just like a CD/DVD would.
With Alcohol 120% you click 'File', then 'open', then browse to and open the .ISO file. You should now see it listed in the window, right click it and select 'Mount on Device'.

7) Run it and ENJOY!


Oh..and you CAN NOT rename a file to .ISO and expect it to extract using WinRAR! Morons - It won't work. BUT, once you do have a TRUE converted .ISO can right click it and extract it using WinRAR.

..and to the Imbecile who asked if a CD image is something like a picture...I'm shocked you even know how to burn a CD without lighting it on fire!! many things I can say.

whoever posted that is a champ and deserves a medal and a box of peak freans. that worked like a charm.
2008-04-14, 15:39:10   (updated: 2008-04-14, 15:46:27)
Xenomorph from United States  
Okay so I downloaded 'Jedi Knight Dark Forces II' and it uses two MDF files. I tried converting to ISO with magicISO but it wont work. It gives me a 'can't find file, or file isn't a cd image'.

The files are Jedi_1 and Jedi_2
They are the 'cds' because the game uses two disks.

I'm not stupid I've done this before (with avp2 game) but can't get the hang of converting MDF. I've looked up most tutorials and read a lot of responses but it's not helping.

You can e-mail me here:


Oh and the file sizes are:

Jedi_1 731 MB
Jedi_2 677

If thats any connotation.

I have winrar and use Daemon. I don't want to burn the CD I just want it on my computer. I really only need the first one because I have the second disk to play the game. All I need is the first converted Jedi_1 file that I can upload to my daemon tools.
2008-05-08, 08:33:00   (updated: 2008-05-08, 08:35:12)
2008-05-08, 08:34:07
2008-05-17, 11:07:34
thejimster from United States  
I tried 3 things to burn an MDF file and they did not work:
1) I tried burning the PS2 game on Alcohol 120% and it did not work
2) It seems that the magicISO conversion did not work. I converted the 4gb mdf game file to an ISO file b/c it was larger than the mds. I then burned it to a dvd and tried to play it on the PS2 but it did not work.
3) I also tried renaming the .mdf to a .bin extension and then tried converting it with WinISO. To no avail did WinISO pick up the file (I found this trick from a few of the other websites that I googles under 'How to burn an MDF file?'

Lastly, I find the DAEMON Tools explanation very helpful, thank you, this is what I am going to try next
2008-05-22, 11:29:54
anonymous from United Kingdom  
Alright people - little help required. Please dont get pissy. I've read this whole thread thing and something still isn't clear to me.

Ok, so i mounted two .mds files, one after the other, for Medieval Total War with Daemon Tools. Problem is, when I click the shortcut on the desktop it says:

'Please insert the correct CD-Rom, select OK and restart application'

Would a kindly soul please give me a little guidance, not everyone are whizzes on computers.

(p.s, i downloaded the torrent off isohunt)
2008-05-25, 23:25:03 from India  
I am a new to MS ACCESS, I am practising myself on the NOrthwind Database comes with the MS Office package. I want to connect the northwind database with the northwind project. Can anyone guide me how to do the same. I am working on this from a week but i am not able to do the same. My PC does not belongs tio any server, It is asking some server location to locate the project file. I have the northwind database file on my PC and I want to connect my Project with that Northwind project file iteself.

Plz Help me Guyz.
2008-06-07, 08:20:30
anonymous from United States  
Ultraiso worked perfectly
thanks guys
2008-06-08, 07:15:54   (updated: 2008-06-08, 07:18:04)
anonymous from India  
bahin ke lawdo , chutiyo maderchodon !

1 file saale gaanduon se khul nahi raha hai .. aur google spyware aur pata nahi kyaa kyaa maa chudaane ki bakwaas kar rahe ho bahinchodon
You are on page 5 of 8, other pages: 1 2 3 4 [5] 6 7 8



NEW: Optional: Register   Login
Email address (not necessary):

Rate as
Hide my email when showing my comment.
Please notify me once a day about new comments on this topic.
Please provide a valid email address if you select this option, or post under a registered account.

Show city and country
Show country only
Hide my location
You can mark text as 'quoted' by putting [quote] .. [/quote] around it.
Please type in the code:

Please do not post inappropriate pictures. Inappropriate pictures include pictures of minors and nudity.
The owner of this web site reserves the right to delete such material.

photo Add a picture: