To make the machine smaller and faster than its predecessors and fit in that 16GB of internal memory, Sony had to let something go: the optical drive.
Iji mee ka ígwè ọrụ ahụ dị ntakịrị ma dị ngwa karịa ndị na-eso ya ma tinye ya na 16GB nke ebe nchekwa dị n'ime ya, Sony ga-ahapụ ihe na-aga-ngwa ikuku.