The AEC-1000 consists of a DVD Drive and the "ALChecker" error measurement application which can check the written data quality. The application is capable of 1X CLV measurement as well as 4X CLV with DVD-Video/ROM and finalized DVD+R/-R media.

There are three measurement modes:

- Fine Mode: checks a series of eight consecutive ECC blocks,

- Rough Mode: checks eight consecutive ECC blocks every 100h ECC blocks

- Quick Mode: checks three specified areas

The checking status is shown graphically in real time. The reported errors are the PI and the UncPO. The PI counts the number of rows corrected by the PI error correction in each group of eight consecutive ECC blocks. The UncPO counts the number of ECC blocks in which more than one byte is uncorrectable in eight consecutive ECC blocks. For our quality scans, we set for 1X CLV and Fine Mode which is the slowest and produces the most reliable results.

- Traxdata 16X DVD+R @ 12X

- ProdiscR04 16X DVD+R @ 12X

- ProdiscS05 16X DVD-R @ 12X

- Datawrite Classic 16X DVD-R @ 16X

- MKM 16X DVD-R @ 16X

- Philips 16X DVD-R @ 12X

- Maxell 8X DVD-R @ 8X

- Summary

According to Almedio AEC-1000 error checker, the drive offers good writing quality. The media we chose to measure are those which either failed in CDSpeed or had high error levels with Plextools. All the tested media reported good quality, with the only exception of Traxdata 16X DVD+R.