You will need
- — computer or laptop;
- — working memory card.
Use a computer with special software, so as to directly increase the amount of card memory is not possible in principle. In order to release some memory apply archive programs that are designed to conserve memory.
Search on the map of memory files which are the results of working with Microsoft Office products. This text and table files. They usually have the extension .doc .xls, .lnk. To compress these formats, created by programs that allow to perform the procedure fast enough. Is archivers WinRAR and WinZIP, which are able to reduce the size of the document is almost ten times, packaging it into an archive file. However, in this situation there is one problem. The result compression will be noticeable if you have the map memory stored a large amount of textual information. This is due to the initially small size of such files.
Check your portable storage medium for photographs. When creating photographs through the digital camera, the file size can sometimes reach 10 megabytes. However, the picture can have good quality at "weight" no more than 2 megabytes. The large size is due to the fact that the camera initially attaches to the created photo a lot of unnecessary "garbage" that can be removed. To do this, use a special program, which can be found on the Internet (Photoshop, Corel Draw, etc.).
Please check the card memory for audio files. If they are and you don't want to remove them, use the programs, which reduce the size of music (winLAME, mp3DirectCut, etc.). This is achieved by reducing the bitrate. However, remember that the full bitrate can not be lower, as it will hurt the quality of the recording.
Do not delete the original file until until you check the quality altered, as it can be a bad option derivative.