Issue of corrupted external hard drive might be troublesome and this is the reason you are probably searching for its solution. Isn't it. External hard drive on Mac is quite common these days for storage of data on the drive when one need some extra storage space. It is mostly used for storing extra data when the internal hard drive is almost full. It can be easily hooked via USB port as and when required. however there might be some circumstances where external hard drive which is connected to the Mac OS X gets corrupted. Malware infection, abrupt removal of the of the external hard drive during read/write process are some of the reasons for its corruption. As a result all the stored data on it becomes inaccessible. At this juncture, it becomes imperative to recover data from the external hard drive if you do not want to part away with your important data due to corrupted external hard drive. This is where Mac data recovery software can be instrumental in recovering data from corrupted external hard drive in hassle free way.