First post, by Robin4
- Rank
- l33t
Iam having an TEAC 5.25 inch HD floppy drive..Teac FD-55GFR 7193-U
Yes i can use HD 1.2MB floppys now, but because those HD floppy are very rare to find, i want to using also DD and QD floppys.. on my drive.
If i format an HD floppy i get indeed 1.2MB on this floppy..
If i want to format an DS-DD floppy iam getting 645kb on this floppy what isnt correct.. (wrong format)
First what are the difference between:
Single Side - Double Density
and
Double Side - Double Density
I know that the first is using one side, and the second using both sides.. But what does this mean for the storage capacity?
Is this correct?
SS-DD = 150kb
DS-DD = 360kb
DS-QD = 720 kb
DS-HD = 1.2MB
The second i want to know is, if iam buying an full game on this floppy disk 5.25 inch, what capacity would this floppy have? Would this always be 1.2MB?
And how get i using both standards?
I have found this...
http://www.oldskool.org/disk2fdi/525HDMOD.htm#R_1
And this...
http://www.oldskool.org/disk2fdi/525HDMOD.htm#D2F
I found that 1.2MB floppy works on 360rpm. And the 360kb works on 300rpm..
I know i need to set an jumper on 1 and on LG low logic level.
And thats its possible to make an manual switch on it..
But how will the bios will reconize this drive at? What standard?
Do i need to reboot my computer to change the bios settings of this drive?
What about this:
HD (and QD) FDDs are 96 tpi (tracks per inch) disk drives, whereas DD drives are 48 tpi.
Do i need to change something here?