1. DVD-R :
DVD-R，缩写为Digital Versatile Disc Recordable ，是一种常见的可刻录 DVD 格式，看起来就像普通 DVD，但它只用于写入一次数据，可以多次读取数据。 DVD-R 是一种 DVD 格式，与所有常见的可刻录 DVD 格式兼容。基本盘最多可存储 4.7 GB 的数据或媒体文件，双层盘最多可存储 8.5 GB。光盘只能使用一次，从驱动器中弹出时不能用于重新录制。
2. DVD+R :
它的发音为 DVD Plus R。它于 2002 年发布。与 DVD-R 一样，它也是一种可刻录的 DVD 格式，但不带有 DVD 标志。它与所有 DVD 播放器的播放兼容性提高了大约 80% 到 80%。它使用 ADIP 系统，通常比 DVD-R 系统稍贵。
DVD-R 和 DVD+R 的区别：
| S.No. | DVD-R | DVD+R |
|---|---|---|
| 1. | DVD-R is pronounced as DVD Dash R. | While it is pronounced as DVD Plus R. |
| 2. | DVD-R was released in year 1997. | While it was released in year 2002. |
| 3. | It does not support drag and drop feature. | It supports drag and drop features. |
| 4. | DVD-R is less expensive than DVD + R. | While it is more expensive than DVD-R. |
| 5. | It does not check for errors during recording. | It checks for errors during recording. |
| 6. | In DVD-R, users are not allowed to format and record data together. | In DVD+R, users are allowed to format and record data together. |
| 7. | There is more risk of interference and error. | While there is less risk of interference and error. |
| 8. | It can only be written once. | It can be written many times. |