Problems in erasing files from my 128 Impact SD card, help?

If you try to erase the files through the card reader, then your problem will be solved. Because, the computer operating system will not allow you to erase the files from the SD card through it. Rather, it will allow you to do so through a card reader. It observed that some files are built in the card reader itself to help for running the formatting process smoothly. These files are not found in the computer operating system rather it is found in the card reader. One thing, you have to remember that your SD card should be formatted in FAT file system. Otherwise, you will face this problem repeatedly. It is better to format your SD card in FAT system and then store your required files in the card. Never try to format the SD card in NTFS file system through your computer's format tab. According to your question, you have to back up your files from the SD card in your computer before you format it. If you like to format your SD card in PDA, then it is better to format it through PDA. When you are formatting the SD card, you should first follow the Quick Format option then follow the Full Format option. After, that your SD card will run smoothly and you can erase any file from it by following the aforementioned advices.