CF Disk error: "Mac OS X can't repair the disk"

Hello all,
first post, nice to be here. grateful for all the resources. been making some progressive here on the mpc2500. please advise if this thread is better suited in another topic.

I have a 16 gb cf disk which i had some trouble getting the mpc to read at first, but by some miracle and patience it eventually formated the cf disk.
i got going with the mpc, have since worked on building a library or samples/drumkits/chops etc. evertyhing was going smooth until i tried connecting via usb my computer to the mpc, to load these dope mpc tutorial chapters i just bought from this site, and saw an error which read:

"Mac OS X can't repair the disk "MPC2500"!

you can still open or copy files on the disk, but you can't save changes to files on the disk. back up the disk and reformat it as soon as you can."

Basically I can't drag and copy anything onto the cf disk anymore.

So - when i go to back-up my cf disk memory, i keep getting periodic Error messages that a certain sample coudn't be found (e.g., a 909 bassdrum or some random snares from a miscellanious kit), which stops the backing-up process, so there's only a partial transfer of data files....and it becomes really difficult to tell if all my files trasnferred over. I have to keep going back and manually picking files to transfer over in clusters which is tediously slow.

Not sure what to make of the sudden demand for reformating the cf...could that have been a consequence of disconnecting my usb cable prematurely? What might cause this so I can avoid it in the future?

Thanks for your time and thoughts.

Yes, not ejecting a disk correctly in a Mac can cause disk errors, it's more likely to happen when the Mac is actively accessing data when it's pulled out it. Disk errors often show themselves as missing files (even though you can see them on the disk) - other parts of the disk may still be perfectly usable.

A reformat might fix;I would avoid re-formatting the disk in a Mac if you can and instead use the MPC2500 to reformat (all data will be lost so back up first if it will let you).

Personally if I get any issues with a CF card I'd just get a new one and bin the old one, they are cheap and it's not worth the risk of losing any valuable data

Christian713 wrote:I have a 16 gb cf disk

CF cards with more than 2 GB capacity are not recommended IMHO. They can cause all sorts of errors and are not reliable.

**** wrote:

Christian713 wrote:I have a 16 gb cf disk

CF cards with more than 2 GB capacity are not recommended IMHO. They can cause all sorts of errors and are not reliable.

i learnt that thee hard way 7yrs ago...

BIG UP YA'LL

this'll get me thinking more in the long-term having a couple 2 gb cf disks layin around instead of one main cf disk. and i'm motivated to backup my tediously converted 16bit samples on my comp.

thanks again