{
  "id": 30187,
  "title": "CRC and data errors with some images decompressing train.7z",
  "url": "/competitions/intel-mobileodt-cervical-cancer-screening/discussion/30187",
  "author_name": "",
  "post_date": "2017-03-16T11:14:35.105360Z",
  "votes": 1,
  "comment_count": 5,
  "views": 0,
  "content": "<p>I'm currently decompressing train.7z using 7za on Ubuntu 16.04.</p>\n\n<p>Most of the images are OK, but for a number of them I'm seeing either a CRC Error or a Data Error (total of 168 files).</p>\n\n<p>Has anyone else experienced this?</p>\n\n<p>The md5sum of my train.7z is be8f85e0c6833566ebcde341db1d407d</p>\n\n<p>(test.7z is ae9efe79d4efa87c0bf923d86fa5c10f )</p>",
  "messages": [
    {
      "id": "168137",
      "postDate": "03/16/2017 11:14:35",
      "content": "<p>I'm currently decompressing train.7z using 7za on Ubuntu 16.04.</p>\n\n<p>Most of the images are OK, but for a number of them I'm seeing either a CRC Error or a Data Error (total of 168 files).</p>\n\n<p>Has anyone else experienced this?</p>\n\n<p>The md5sum of my train.7z is be8f85e0c6833566ebcde341db1d407d</p>\n\n<p>(test.7z is ae9efe79d4efa87c0bf923d86fa5c10f )</p>",
      "rawMarkdown": "I'm currently decompressing train.7z using 7za on Ubuntu 16.04.\n\nMost of the images are OK, but for a number of them I'm seeing either a CRC Error or a Data Error (total of 168 files).\n\nHas anyone else experienced this?\n\nThe md5sum of my train.7z is be8f85e0c6833566ebcde341db1d407d\n\n(test.7z is ae9efe79d4efa87c0bf923d86fa5c10f )",
      "votes": null
    },
    {
      "id": "168141",
      "postDate": "03/16/2017 11:27:01",
      "content": "<p>All good here with a MD5 of 4b3fd8c73b6ac21b1e106d5efd8713cd and 5,944,334,666 bytes, looks like your download got corrupted/interrupted.</p>",
      "rawMarkdown": "All good here with a MD5 of 4b3fd8c73b6ac21b1e106d5efd8713cd and 5,944,334,666 bytes, looks like your download got corrupted/interrupted.",
      "votes": null
    },
    {
      "id": "168143",
      "postDate": "03/16/2017 11:41:46",
      "content": "<p>I can confirm:</p>\n\n<pre><code>4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z\nae9efe79d4efa87c0bf923d86fa5c10f  test.7z\n3e914c7fe2dcc8a10584b9b7413acec4  additional.7z\n</code></pre>\n\n<p>Not sure for additional.7z, I got some dwld errors</p>",
      "rawMarkdown": "I can confirm:\n\n    4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z\n    ae9efe79d4efa87c0bf923d86fa5c10f  test.7z\n    3e914c7fe2dcc8a10584b9b7413acec4  additional.7z\n \nNot sure for additional.7z, I got some dwld errors",
      "votes": null
    },
    {
      "id": "168147",
      "postDate": "03/16/2017 11:53:41",
      "content": "<p>Thanks @visoft and @r4m0n! Indeed it looks like my download somehow got corrupted (I used aria2c). My test.7z is ok.</p>",
      "rawMarkdown": "Thanks @visoft and @r4m0n! Indeed it looks like my download somehow got corrupted (I used aria2c). My test.7z is ok.",
      "votes": null
    },
    {
      "id": "168329",
      "postDate": "03/16/2017 21:19:56",
      "content": "<p>Hi cpbotha,</p>\n\n<p>I just downloaded the files again and ran an md5sum on your same version of Ubuntu.  I get the following sums:\nae9efe79d4efa87c0bf923d86fa5c10f  test.7z   (511 good images)\n4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z (3 folders 1481 good images)</p>",
      "rawMarkdown": "Hi cpbotha,\n\nI just downloaded the files again and ran an md5sum on your same version of Ubuntu.  I get the following sums:\nae9efe79d4efa87c0bf923d86fa5c10f  test.7z   (511 good images)\n4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z (3 folders 1481 good images)",
      "votes": null
    },
    {
      "id": "168472",
      "postDate": "03/17/2017 06:02:51",
      "content": "<p>Thanks also @BenO. After re-downloading, my train.7z checksummed correctly. :)</p>",
      "rawMarkdown": "Thanks also @BenO. After re-downloading, my train.7z checksummed correctly. :)",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 168141,
      "author_name": "mumech",
      "author_url": "",
      "post_date": "03/16/2017 11:27:01",
      "content": "<p>All good here with a MD5 of 4b3fd8c73b6ac21b1e106d5efd8713cd and 5,944,334,666 bytes, looks like your download got corrupted/interrupted.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 168143,
      "author_name": "visoft",
      "author_url": "",
      "post_date": "03/16/2017 11:41:46",
      "content": "<p>I can confirm:</p>\n\n<pre><code>4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z\nae9efe79d4efa87c0bf923d86fa5c10f  test.7z\n3e914c7fe2dcc8a10584b9b7413acec4  additional.7z\n</code></pre>\n\n<p>Not sure for additional.7z, I got some dwld errors</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 168147,
      "author_name": "cpbotha",
      "author_url": "",
      "post_date": "03/16/2017 11:53:41",
      "content": "<p>Thanks @visoft and @r4m0n! Indeed it looks like my download somehow got corrupted (I used aria2c). My test.7z is ok.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 168329,
      "author_name": "benodom",
      "author_url": "",
      "post_date": "03/16/2017 21:19:56",
      "content": "<p>Hi cpbotha,</p>\n\n<p>I just downloaded the files again and ran an md5sum on your same version of Ubuntu.  I get the following sums:\nae9efe79d4efa87c0bf923d86fa5c10f  test.7z   (511 good images)\n4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z (3 folders 1481 good images)</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 168472,
      "author_name": "cpbotha",
      "author_url": "",
      "post_date": "03/17/2017 06:02:51",
      "content": "<p>Thanks also @BenO. After re-downloading, my train.7z checksummed correctly. :)</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "168137": "I'm currently decompressing train.7z using 7za on Ubuntu 16.04.\n\nMost of the images are OK, but for a number of them I'm seeing either a CRC Error or a Data Error (total of 168 files).\n\nHas anyone else experienced this?\n\nThe md5sum of my train.7z is be8f85e0c6833566ebcde341db1d407d\n\n(test.7z is ae9efe79d4efa87c0bf923d86fa5c10f )",
    "168141": "All good here with a MD5 of 4b3fd8c73b6ac21b1e106d5efd8713cd and 5,944,334,666 bytes, looks like your download got corrupted/interrupted.",
    "168143": "I can confirm:\n\n    4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z\n    ae9efe79d4efa87c0bf923d86fa5c10f  test.7z\n    3e914c7fe2dcc8a10584b9b7413acec4  additional.7z\n \nNot sure for additional.7z, I got some dwld errors",
    "168147": "Thanks @visoft and @r4m0n! Indeed it looks like my download somehow got corrupted (I used aria2c). My test.7z is ok.",
    "168329": "Hi cpbotha,\n\nI just downloaded the files again and ran an md5sum on your same version of Ubuntu.  I get the following sums:\nae9efe79d4efa87c0bf923d86fa5c10f  test.7z   (511 good images)\n4b3fd8c73b6ac21b1e106d5efd8713cd  train.7z (3 folders 1481 good images)",
    "168472": "Thanks also @BenO. After re-downloading, my train.7z checksummed correctly. :)"
  },
  "source": "meta"
}