A micro SD card is a tiny, external hard drive that you can take with you and use in your media players (such as mp3 and 4 players and phones). How much data you can store on these is determined by their size--not their physical size, but the size of their memory. An 8GB card holds 8GB of data. Songs are data files. So to understand how many songs will fit, you will need to know a few things.
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One megabyte (MB) is equal to 1,024KB of data. One gigabyte (GB) equals 1,024MB of data. So 8GB equals 8,192MB of data.
Measuring Data in Songs
The average song runs between 2MB (very short) and 6MB (fairly long). So it's safe to say that an average song is roughly 4MB. These sizes vary, but the average 3 1/2- to 4-minute song is about 4MB.
So How Many Songs?
An average song equals 4MB. An 8GB micro SD card holds 8,192MB of data. So 8,192MB divided by 4MB equals approximately 2,000 songs.
The size of your songs determines how many can be put onto any data storage. If your songs consist mostly of shorter songs or smaller files, you can fit more on the disk.
To find out how much data your micro SD card holds, read the number on the side of the card. Cards come in a variety of sizes.